CN105828666B - Toothbrush - Google Patents
Toothbrush Download PDFInfo
- Publication number
- CN105828666B CN105828666B CN201480068850.3A CN201480068850A CN105828666B CN 105828666 B CN105828666 B CN 105828666B CN 201480068850 A CN201480068850 A CN 201480068850A CN 105828666 B CN105828666 B CN 105828666B
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- Prior art keywords
- bristle
- filament
- toothbrush
- elongation
- break
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Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
- A46B9/04—Arranged like in or for toothbrushes
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/003—Testing of brushes
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/1066—Toothbrush for cleaning the teeth or dentures
Abstract
Bristle bending and bristle when the present invention prevents from being repeatedly used for a long toothbrush are scattered.Toothbrush (1) has shank body (10) and is extended in the head (20) of the front end of shank body (10), the bristle tuft (21) of more bristles (21a) of multi beam is implanted in head (20), all or part of of bristle (21a) is made of the filament of polybutylene terephthalate (PBT), zero-shear viscosity at 240 DEG C of above-mentioned filament is in the range of 200~300Pas, while the elongation at break of per unit area is below 2600%.
Description
Technical field
The present invention relates to toothbrushes.
The application is basic CLAIM OF PRIORITY at Patent 2013-262893 of Japanese publication on December 19th, 2013,
It is hereby incorporated its content.
Background technique
In order to prevent periodontal disease, the tartar for removing neck portion is important.Therefore, special in order to make toothbrush to neck portion
It is not the cleaning raising of oral pocket, as toothbrush, can be used using the so-called taper hair of hair end sharpening as the tooth of bristle
Brush, alternatively, using the toothbrush (patent document 1) of thin bristle.
Existing technical literature
Patent document
Patent document 1: No. 3145213 bulletins of Japanese Patent No.
Summary of the invention
Subject to be solved by the invention
However, having the case where bristle bending for generating the nearly bristle bending for planting hair side when being repeatedly used for a long toothbrush.This is asked
It inscribes especially significant when using raw material of the polyester based resin as bristle.In addition, the orthostatic of bristle declines, generate when overlooking most
Whole bristle areas encompassed in outside compared to it is unused when expand the case where such bristle scatters.
Therefore, project of the invention is that bristle bending and bristle when preventing from being repeatedly used for a long toothbrush are scattered.
The means used to solve the problem
The toothbrush that embodiments of the present invention are related to has shank body and is extended in the head of above-mentioned front end of the shank body,
Above-mentioned head is implanted with the bristle tuft that multi beam has more bristles, in the toothbrush, all or part of above-mentioned more bristles
It is the filament using polybutylene terephthalate (PBT) as constituent material, zero-shear viscosity at 240 DEG C of above-mentioned filament is 200
The range of~300Pas, while the elongation at break of the per unit area acquired with following formula (1) is 2600% or less.
The elongation at break (%) of per unit area=elongation at break (%)/sectional area (mm2)(1)
In addition, above-mentioned elongation at break is to be divided using tensile testing machine in 25 DEG C of measuring temperature, tensile speed 20mm/
The numerical value measured under determination condition.Sectional area is the sectional area of aftermentioned widest portion.
In addition, the toothbrush that other embodiments of the present invention are related to, zero-shear viscosity at 240 DEG C of above-mentioned filament exists
The range of 260~280Pas.
In addition, the toothbrush that other embodiments of the present invention are related to, above-mentioned filament is measuring temperature using tensile testing machine
The elongation at break of the per unit area measured under 25 DEG C of degree, tensile speed 20mm/ points of determination condition is below 2500%.
In addition, the toothbrush that other embodiments of the present invention are related to, the cross section of above-mentioned bristle be it is roughly circular, thickness is
4~10 mils.
[The effect of invention]
Bristle bending and bristle when toothbrush of the invention can prevent from being repeatedly used for a long toothbrush are scattered.
Detailed description of the invention
[Fig. 1] is a kind of side view of embodiment of performance toothbrush of the invention.
[Fig. 2] is the schematic diagram for illustrating the tension test in embodiment and comparative example.
Symbol description
1 toothbrush
10 shank bodies
20 heads
20a plants hair side
21 bristle tufts
21a bristle
Specific embodiment
A kind of embodiment of toothbrush of the invention is illustrated.
The side view of the toothbrush of present embodiment is indicated in Fig. 1.The toothbrush 1 of present embodiment is to set shank body 10 with extension
The head 20 for being placed in shank body 10, which is integrally formed, to be obtained, and is implanted with multi beam on head 20 and is tied up more bristle 21a and obtains
Bristle tuft 21.
Head 20 is cut off the corner in corner with curve on plan view using the arbor direction of shank body 10 as long side
To the tabular of substantially quadrangle, multiple plant pores are formed on a side surface 20a (planting hair side 20a).It is implanted into the plant pore
There is bristle tuft 21, is formed by the bristle tuft 21 of multi beam and plant hair portion.
The size on head 20 can suitably be selected with reference to the head size of previous toothbrush, it may be considered that intraoral behaviour
Property made etc. determines.
When the size of the width direction on head 20 is too long, intraoral operability decline；When too short, the number of bristle tuft implantation
Amount becomes very few, is easy damage and cleans effect.Therefore, the size of the width direction on head 20 can be, such as 5~13mm.Separately
Outside, herein the width on head be the maximum position of width width.For example, the front end on head is nearby that circular configuration equal in width becomes
It is the width for removing the position of the part in the case where small.
The size of the thickness direction on head 20 is thinner, can more improve intraoral operability, still, head 20 when excessively thin
Intensity is easy to become inadequate.Therefore, the decision such as material of shank body 10 can be considered in the thickness on head 20, for example, it is preferable to 1.5~
5mm, more preferable 2~3mm.In addition, the thickness on head refers to the thickness at the maximum position of thickness herein.For example, the edge on head
It is the thickness for removing the position of the part in the case where nearby becoming smaller for circular configuration equal thickness.
When the size of the length direction on head 20 is too long, it is easy the intraoral operability of damage；When too short, plant pieces 21 and plant
The quantity entered becomes very few, is easy damage and cleans effect.Therefore, the size of the length direction on head 20 can suitably determine for
The range of 10~26mm.
The shape for planting pore is not particularly limited, and it is polygon can to enumerate the circles such as positive round or ellipse, triangle or quadrangle etc.
Shape etc..
The hole count for planting pore is not particularly limited, for example, it may be 10~60 hole.
The diameter for planting pore can be determined according to the thickness of required plant pieces 21, for example, it may be 1~3mm.
The pattern of rows and columns for planting pore is not particularly limited, and can be so-called chessboard trellis or plover trellis (is also referred to as handed over
Wrong shape) etc. any pattern of rows and columns.
All or part of of more bristle 21a in present embodiment is with polybutylene terephthalate (PBT) (PBT)
Filament as constituent material.Bristle 21a be the filament using polybutylene terephthalate (PBT) as constituent material refer to by with
Polybutylene terephthalate (PBT) is directly used as bristle as the filament of constituent material.Herein, with polybutylene terephthalate
Ester refers to that the constituent material of filament is to remove impurity etc. as constituent material, is almost made of polybutylene terephthalate (PBT)
Structure, and specifically, it is preferable to there is the polybutylene terephthalate (PBT) of 90~100 weight %.Constituting the resin of filament is poly- to benzene
When dioctyl phthalate butanediol ester, the filament of taper can be easily made according to manufactures means such as chemical treatments.
All or part of of more bristle 21a is the filament using polybutylene terephthalate (PBT) as constituent material
Situation refers to, in preferably more bristle 21a contained in bristle tuft 21, relative to the total of bristle 21a contained in bristle tuft 21
Body radical, the radical of the filament containing polybutylene terephthalate (PBT) is 25% or more in constituent material.
It is all the straight plate shape of same diameter that it is whole, which to can be length direction, for the shape of bristle 21a, is also possible to towards bristle
The taper that front end attenuates.From the viewpoint of the cleaning for further increasing neck portion, the bristle (cone of the preferred taper of bristle 21a
Shape hair).
Bristle when a part of bristle 21a is the filament of polybutylene terephthalate (PBT), as remainder
The straight plate shape being made of the resin (for example, nylon) other than polybutylene terephthalate (PBT) or taper can be used in 21a
Filament.
Filament in present embodiment, zero-shear viscosity at 240 DEG C 200~300Pas range, preferably 260~
The range of 280Pas.When the zero-shear viscosity above-mentioned lower limit value of deficiency, bristle becomes easy bending.In addition, zero shearing of filament
When viscosity is more than above-mentioned upper limit value, it is intended to which formability when extrusion molding when obtaining above-mentioned filament is lower, in addition, taper adds
Working hour, productivity also tend to decline.
Measurement of Dynamic Viscoelasticity when zero-shear viscosity in present embodiment can be according to 240 DEG C is found out.Dynamic Viscoelastic
Property measurement (or DMA) refer to, the power that changes over time is applied to sample, is found out according to the variation of the deformation of resulting sample
The measurement of the variation of elasticity modulus.
Measurement of Dynamic Viscoelasticity when specifically, according to 240 DEG C, production horizontal axis are angular frequency, and the longitudinal axis is loss resilience
The chart of modulus G " finds out loss elastic modulus when angular frequency is 0 by interpolation method according to the chart.Then, by angular frequency
Loss elastic modulus when rate ω is 0 is as zero-shear viscosity.
In addition, for example using polybutylene terephthalate (PBT) as in the case where the filament of constituent material, due to zero shearing
Viscosity is proportional to 3.4 powers of weight average molecular weight of above-mentioned polybutylene terephthalate (PBT) molecule, becomes contained work
For the index of the weight average molecular weight of the compound of the constituent material of filament.That is, zero-shear viscosity is bigger, the weight of above compound is equal
Molecular weight is bigger.
In addition, the filament in present embodiment, the elongation at break of per unit area is 2600% hereinafter, it is preferred that 2500%
Below.
Herein, the elongation at break of per unit area is the numerical value that following formula (1) indicates.
The elongation at break (%) of per unit area=elongation at break (%)/sectional area (mm2)(1)
The sectional area of filament is, such as perpendicular to length direction cuts off in the most thick position of filament and cut obtained from filament
The sectional area in face (cross section).Most thick position refers to, such as filament is taper, and the filament at both ends attenuates (sectional area becomes smaller)
In the case of, by the meaning of the thin position removal in its both ends, it can be the area of the arbitrary section of the position, by way of example, be to remove
The thin position at above-mentioned both ends is gone to, the sectional area at the position of the length 50~90% at the center on the length direction comprising filament
It is average.In addition, thickness when sectional area can be according to the manufacture of filament is inferred to obtain (for example, according to the mold of the machine of forming
Size infer to obtain).
When the elongation at break of the per unit area of filament is more than above-mentioned upper limit value, becomes easy and bristle is caused to scatter.Separately
On the one hand, in view of intensity necessary to filament used in usual toothbrush and thickness, the elongation at break of preferred unit area exists
1500% or more.In view of these numerical value, the elongation at break of the per unit area of filament preferably 1500~2600% is further excellent
Select 1500~2500%.
In addition, elongation at break is using tensile testing machine, in 25 DEG C of measuring temperature, tensile speed 20mm/ points of measurement
Under the conditions of the numerical value that measures.Herein, tensile testing machine can be properly used can to sample apply draw direction (for example, for
The filament of present embodiment, be make on the length direction of filament its extend direction) power machine.Further specifically,
Can be used can with certain elongation speed to sample apply draw direction power, measure sample fracture when power and sample
Tensile strain rate machine.As the example of tensile testing machine, electronic universal tester can be preferably used
(Autograph testing machine) etc..
In addition, in present embodiment, in preferably bristle 21a comprising 50% or more meet above-mentioned zero-shear viscosity and
The filament of the condition of the elongation at break of per unit area.
The spinning condition when elongation at break of filament is produced by filament is influenced.Therefore, in order to make elongation at break
It within the above range, can be with the degree of drawing and heat treatment condition in appropriate adjustment spinning process.
On any position of the length direction of bristle 21a, perpendicular to length direction cut off bristle 21a obtain it is transversal
Face shape is not particularly limited, can be the circles such as circular or ellipse, polygon, star, three leaves cloverleaf pattern or
The cloverleaf pattern etc. of four leaf of person.
The decision such as material can be considered in the thickness of bristle 21a, when cross section is round, such as can be 4~10 mils (1
Mil=1/1000 inch=0.025 millimeter).Further, it is contemplated that use feeling, brush sweep sense, clean effect or durability etc., Ke Yiren
The variform more bristle 21a of thickness or cross section are applied in combination to meaning.
As the method for implantation of above-mentioned bristle tuft 21, can be planted known in the method for hair or the method for thermal weld etc. using flat wire
Method.
Flat wire is planted in the method for hair, ties up doubling for bristle 21a more, and be sandwiched between referred to as flat wire is kept fixed use
Tool is squeezed into and is planted in pore, so that bristle tuft 21 is implanted in each plant pore.
Flat wire is squeezed into according to the central part planting pore and by way of planting pore in plant pore.As flat wire
Material, such as the metals such as brass or stainless steel can be enumerated, it is other also to enumerate rigid plastics or biodegradable plastic etc..
Length, width and the thickness of flat wire can arbitrarily be adjusted in conjunction with bristle tuft 21 and bristle hole, normally, flat wire
Length be greater than the diameter for planting pore, the width of flat wire is less than the depth for planting pore.In addition, by the thickness for adjusting flat wire, energy
Enough be certainly fixed on bristle tuft 21 is planted in pore, and gap is reduced.In addition, flat wire is extracted from pore is planted in order to prevent, preferably
0.3~0.6mm is added up to from the length for the two sides part outstanding for planting pore.
Rigidity and mechanical property etc. needed for head 20 and shank body 10 can be considered certainly in the material of head 20 and shank body 10
It is fixed, for example, it is preferable to the resin (hereinafter, sometimes referred to as hard resin) of bending modulus (JIS K7203) 500MPa or more, more preferably
The resin of bending modulus 700MPa or more.The upper limit of the bending modulus of resin used in head 20 and shank body 10 is not special
It limits, for example, it may be 3000MPa.Specifically, such as the bending modulus of the material of head 20 and shank body 10 can choose
500~3000MPa, the preferably range of 700~3000MPa.
As the resin of bending modulus 500MPa or more, for example, polypropylene (PP), polyethylene terephthalate can be enumerated
Ester (PET), polybutylene terephthalate (PBT) (PBT), polycyclohexylene's diformazan alcohol ester (PCT), polyformaldehyde
(POM), polyethylene naphthalate (PEN), polystyrene (PS), acrylonitrile-butadiene-styrene resin (ABS), propionic acid
Cellulose (CP), polyarylate, polycarbonate or acrylonitrile-styrene copolymerized resin (AS) etc., wherein preferred bending modulus
POM, PEN, PBT or PCT etc. of 2000MPa or more.By using the resin of bending modulus 2000MPa or more, make head 20
It is thinning, it can be improved intraoral operability, and the breakage of shank body 10 can be prevented.
In addition, some or all of shank body 10 can be covered by soft resin.By a part of shank body 10 or
It is all covered by soft resin, the sense that agrees with of hand when user holds shank body 10 improves, and is furthermore possible to the finger for preventing from holding
Sliding.
As soft resin, it can be mentioned, for example preferred shore hardness A90 resin below, more preferable shore hardness A30~
80 resin.As such soft resin, for example, polyolefin elastomer, styrene series elastomer, Polyester bullet can be enumerated
Property the body perhaps elastomer resins such as polyurethane series thermoplastic elastomer (TPE) or silicon etc..
As described above, the range of zero-shear viscosity when the toothbrush of present embodiment is by 240 DEG C in 200~300Pas,
The elongation at break of per unit area is constituted in the filament of 2600% polybutylene terephthalate (PBT) below simultaneously, therefore
It can prevent bristle bending and bristle from scattering.
[embodiment]
(embodiment 1, comparative example 1,2)
By polycyclohexylene's diformazan alcohol ester resin (name of product: イ ー ス タ ー BR203, bending strength；
68MPa, bending modulus；1900MPa, Eastman Chemical Company's manufacture) injection molding, obtain the integrally formed of head and shank body
Object.It is respectively 2 holes × 1 column, 3 hole × 1 from the front end on head to shank body that the diameter for planting pore, which is 1.5mm, plants the arrangement of pore
Column, 4 holes × 5 column, 3 holes × 1 column.
Then, the brush of the tapered bristles (7.5 mil) polybutylene terephthalate (PBT) filament shown in table 1 constituted
Pieces plants hair implantation by flat wire type and is set to head, makes toothbrush.
In addition, the zero-shear viscosity of filament and the elongation at break of per unit area are measured with mode below.Measurement
The results are shown in Table 1.
[zero-shear viscosity]
Use and has circular cone-plectane (4 ° of coning angle, cone diameter 25mm) as the Dynamic Viscoelastic of the fixture of measurement sample
Property measurement device (TA instrument company manufacture AR-2000ex), the Dynamic Viscoelastic by frequency dependence mode, when measuring 240 DEG C
Property.Accordingly, production horizontal axis be angular frequency, the chart that the longitudinal axis is loss elastic modulus G ", according to the chart, by interpolation method,
Find out loss elastic modulus when angular frequency is 0.Using angular frequency be 0 when loss elastic modulus as zero-shear viscosity.
[elongation at break of per unit area]
The elongation at break of per unit area carries out the drawing of filament using the electronic universal tester that Shimadzu Seisakusho Ltd. manufactures
Test is stretched, is found out by following formula (1).
The elongation at break (%) of per unit area=elongation at break (%)/sectional area (mm2)(1)
The condition of tension test is distance between 25 DEG C of measuring temperature, tensile speed 20mm/ point, collet (test fixture)
5mm.The plan view of test film used in the tension test of this measurement is shown in the drawings.In addition, as shown in Fig. 2, away from intermediate point
Load onto collet in part between part A, A of C2.5mm other than (section).
[table 1]
| Embodiment 1 | Comparative example 1 | Comparative example 2 | |
| Zero-shear viscosity (Pas) | 269 | 151 | 324 |
| The elongation at break (%) of per unit area | 2419 | 1704 | 2665 |
| Bristle bends radical (root) | 0.0 | 22.8 | 0.0 |
| Bristle scatters | ○ | ○ | × |
< evaluates >
In the toothbrush of each example, evaluation bristle bending durability and bristle scatter durability.Evaluation result is as shown in table 1.
[bristle bending durability]
The experimental liquid for being dispersed in water commercially available dentifrice is set as 35 DEG C, presses bristle tuft in experimental liquid
Making toothbrush while being pressed on metal corrugated plating, round-trip scrubbing brush is swept repeatedly.Experimental condition at this time is weight bearing 300g, brush sweeps row
Journey 40mm, 160 beats/min of reciprocating speed, brush are swept number 150,000 times.Then, using being measured microscopically every 1 toothbrush after brush is swept
It is broken radical, i.e. bristle bends radical.The column of " the bristle bending radical " of table 1 indicates the bristle of 5 toothbrushes measurement to measurement
Bend the average value of radical.Bristle bending radical is fewer, and it is higher that bristle bends durability.
[bristle scatter durability]
Measurement brush sweeps the plant hair portion width of the toothbrush short-axis direction of front and back, calculates the bristle front end diffusion breadth after brush is swept,
Find out the ratio of the plant hair portion width relative to A-stage.Based on the ratio, scattered with following benchmark evaluation bristle.
◎: less than 20%
Zero: 20% or more-less than 60%
△: 60% or more -100% or less
×: more than 100%
Using zero-shear viscosity in the range of 200~300Pas and the elongation at break of per unit area is 2600%
The toothbrush of the embodiment 1 of PBT taper hair below, it is difficult to generate bristle bending and bristle scatters.
On the other hand, the toothbrush of the comparative example 1 of the PBT taper hair using zero-shear viscosity less than 200Pas holds
It is also easy to produce bristle bending.
On the other hand, be more than using the elongation at break of per unit area 2600% PBT taper hair comparative example 2
Toothbrush easily causes bristle and scatters.
Claims (2)
1. a kind of toothbrush has shank body and is extended in the head of the front end of the shank body, the head is implanted with multi beam tool
There is the bristle tuft of more bristles,
All or part of of the more bristles is the tapered filament using polybutylene terephthalate (PBT) as constituent material,
Zero-shear viscosity at 240 DEG C of the filament 260~280Pas range, meanwhile, the per unit of the filament
The elongation at break of area is 1500% or more, 2600% hereinafter, the elongation at break is being measured using tensile testing machine
It is measured under 25 DEG C of temperature, tensile speed 20mm/ points of determination condition.
2. toothbrush as described in claim 1, the elongation at break of the per unit area of the filament is below 2500%.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013262893A JP2015116411A (en) | 2013-12-19 | 2013-12-19 | Toothbrush |
| JP2013-262893 | 2013-12-19 | ||
| PCT/JP2014/082405 WO2015093334A1 (en) | 2013-12-19 | 2014-12-08 | Toothbrush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105828666A CN105828666A (en) | 2016-08-03 |
| CN105828666B true CN105828666B (en) | 2019-02-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480068850.3A Active CN105828666B (en) | 2013-12-19 | 2014-12-08 | Toothbrush |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2015116411A (en) |
| KR (1) | KR102319783B1 (en) |
| CN (1) | CN105828666B (en) |
| WO (1) | WO2015093334A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107183904A (en) * | 2017-05-24 | 2017-09-22 | 汕头市绿宝日化有限公司 | A kind of chitin toothbrush and preparation method thereof |
| EP4082389A4 (en) * | 2019-12-25 | 2023-12-06 | Sunstar Inc. | Toothbrush |
| KR20220076227A (en) | 2020-11-30 | 2022-06-08 | 우종국 | Disposable toothbrush |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1893854A (en) * | 2003-03-14 | 2007-01-10 | 吉莱特公司 | Toothbrush head |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2653277A1 (en) | 1989-10-17 | 1991-04-19 | Thomson Composants Microondes | LOGIC INTEGRATED CIRCUIT WITH ADJUSTABLE TILT TIME. |
| JP3453028B2 (en) * | 1996-07-29 | 2003-10-06 | ライオン株式会社 | Toothbrush |
| BR0109612A (en) * | 2000-03-30 | 2004-01-13 | Asahi Chemical Ind | Monofilament yarn and method for its production |
| KR101477326B1 (en) * | 2007-12-18 | 2014-12-29 | 라이온 가부시키가이샤 | Toothbrush |
| JP5402020B2 (en) * | 2009-01-26 | 2014-01-29 | サンスター株式会社 | Toothbrush and manufacturing method thereof |
| KR101237394B1 (en) * | 2010-05-26 | 2013-02-26 | 윤정희 | Developing Tapering Process of 100% PLA and PLA/PBT Blended Monofilaments using Alkaline Hydrolysis |
| KR101193946B1 (en) * | 2010-05-31 | 2012-10-24 | 비비씨 주식회사 | Manufacturing method of toothbrush filaments using power toothbrush and toothbrush using thereof |
| JP2013240376A (en) * | 2012-05-18 | 2013-12-05 | Toray Monofilament Co Ltd | Bristle material for brush, and brush |
-
2013
- 2013-12-19 JP JP2013262893A patent/JP2015116411A/en active Pending
-
2014
- 2014-12-08 CN CN201480068850.3A patent/CN105828666B/en active Active
- 2014-12-08 KR KR1020167000900A patent/KR102319783B1/en active IP Right Grant
- 2014-12-08 WO PCT/JP2014/082405 patent/WO2015093334A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1893854A (en) * | 2003-03-14 | 2007-01-10 | 吉莱特公司 | Toothbrush head |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015116411A (en) | 2015-06-25 |
| KR20160102149A (en) | 2016-08-29 |
| WO2015093334A1 (en) | 2015-06-25 |
| KR102319783B1 (en) | 2021-11-01 |
| CN105828666A (en) | 2016-08-03 |
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