JP2021190974A - Airborne droplet prevention cover - Google Patents

Airborne droplet prevention cover Download PDF

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JP2021190974A
JP2021190974A JP2020110913A JP2020110913A JP2021190974A JP 2021190974 A JP2021190974 A JP 2021190974A JP 2020110913 A JP2020110913 A JP 2020110913A JP 2020110913 A JP2020110913 A JP 2020110913A JP 2021190974 A JP2021190974 A JP 2021190974A
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microphone
cover
prevention cover
splash
sound collecting
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JP6852235B1 (en
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雅之 鳴海
Masayuki Narumi
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HSS KK
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    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/08—Arm or hand
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/12—Sanitary or hygienic devices for mouthpieces or earpieces, e.g. for protecting against infection

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
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  • Acoustics & Sound (AREA)
  • Pulmonology (AREA)
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  • Physics & Mathematics (AREA)
  • Public Health (AREA)
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  • Physical Education & Sports Medicine (AREA)
  • Textile Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

To reduce airborne droplets, such as spit, scattering to a surrounding area when a person uses a microphone to sing or make a speech to provide anti-fouling effect of a microphone body and effect of inhibiting the user from being infected from the microphone.SOLUTION: Firstly, the invention has a scattering prevention cover 11. Secondly, the invention has a glove 14 to avoid contact with a microphone body. Thirdly, the invention has a microphone sound collecting cover 15 to prevent contact with a microphone sound collecting part. Fourthly, a sound absorption material for difficulties in sound collection of a microphone and a material serving as an adsorbent for airborne droplets may be attached to the scattering prevention cover 11.SELECTED DRAWING: Figure 7

Description

本発明は、マイクを歌唱や演説、講義ならびに会議などに用いる際、周辺への唾液などの飛沫類の飛散の低減と、マイクのカバーの改良に関するものである。The present invention relates to reducing the scattering of droplets such as saliva to the surroundings and improving the cover of the microphone when the microphone is used for singing, speeching, lectures, conferences, and the like.

マイクなどを使用して、歌唱や演説、講義ならびに会議など行う際、周辺への唾液などの飛沫の飛散が起こってしまい、この飛沫が唾液臭や、感染症の感染源になってしまう恐れも考えられる。これの低減にはマスクなどを装着して行う事が望ましいが、マスクなどを装着した状態では、本来の音声が発声できなかったり、息苦しさを感じてしまう場合もある。When singing, giving a speech, giving a lecture, or having a meeting using a microphone, the droplets of saliva may be scattered around, and these droplets may become a source of saliva odor and infectious diseases. Conceivable. To reduce this, it is desirable to wear a mask or the like, but when the mask or the like is worn, the original voice may not be uttered or the person may feel stuffy.

カラオケ装置を店舗に有し、利用者にマイクを使用して歌唱などを行わせる料飲店ならびにカラオケボックスなどでは、１本または２本程度のマイクを、料飲店では１店舗で、カラオケボックスなどでは１部屋の利用者で使いまわすのが通常である。At restaurants and karaoke boxes that have karaoke equipment in stores and allow users to sing using microphones, one or two microphones can be used at restaurants, and at karaoke boxes, etc. It is usually used by one room user.

集会ならびに会議や授業、会見などを開催する際、参加者に発言内容が行き渡るよう、マイクを使用して発言を行うなどの際には、１本または少量本数のマイクを参加者で使いまわすことが一般的である。Participants should use one or a small number of microphones when making remarks using microphones so that the content of their remarks can be distributed to participants when holding meetings, meetings, classes, and press conferences. Is common.

これら上記のような場面などでのマイクの使用は、不特定多数が使いまわすことになり、マイク自体が唾液や素手で持つことにより汚染されてしまったり、感染症などの感染源になる懸念があった。The use of the microphone in these situations such as the above will be reused by an unspecified number of people, and there is a concern that the microphone itself will be contaminated by holding it with saliva or bare hands, or it will become a source of infection such as infectious diseases. there were.

マイク本体の汚染の問題を解決するため、特許文献１では、マイク全体にカバーを取り付ける方法が開示されている。また、特許文献２では、マイク全体にカバーを取り付ける方法が開示されている。In order to solve the problem of contamination of the microphone body, Patent Document 1 discloses a method of attaching a cover to the entire microphone. Further, Patent Document 2 discloses a method of attaching a cover to the entire microphone.

特許文献１に記載のカバーは、マイク本体をすべてカバー内に納めてしまうことにより、マイク自体の汚染を防止するようにしている。
特許文献２に記載のカバーは、マイク本体の集音部分のみ、樹脂で作られたカバーを磁石によって取り付けて保護するようにしている。また、これに類する形態として、集音部のみの保護は、このほかにも布や紙などで覆って保護する手段が多数散見される。The cover described in Patent Document 1 is designed to prevent contamination of the microphone itself by putting the entire microphone body inside the cover.
As for the cover described in Patent Document 2, only the sound collecting portion of the microphone body is protected by attaching a cover made of resin with a magnet. In addition, as a form similar to this, there are many other means for protecting only the sound collecting portion by covering it with a cloth or paper.

発声時の飛沫防止の手段として、特許文献３に記載のような、一般的にマスクと呼称される物の装着が行われており、マスクの装着以外でカバーと類する物として、特許文献４に記載のような外部から身体を保護するような形態が存在する。As a means for preventing splashes at the time of vocalization, a thing generally called a mask is attached as described in Patent Document 3, and as a thing similar to a cover other than wearing a mask, Patent Document 4 describes it. There is a form that protects the body from the outside as described.

登録実用新案第３０１７５２２公報Registered Utility Model No. 3017522 特開２００５−０１２６０４号公報Japanese Unexamined Patent Publication No. 2005-012604 特開２０１６−０６７６７１号公報Japanese Unexamined Patent Publication No. 2016-06671 特開２００９−１８９５４３号公報Japanese Unexamined Patent Publication No. 2009-189543

これら従来のマイクカバーは、マイク本体のみを対象として、汚染などの保護を行っており、マイク本体に対しては有効な手段と考えられる。しかし、唾液などの飛沫の飛散による汚染はマイク本体のみだけでは無く周辺へも、カラオケボックスなど狭い空間の場合、部屋の広範囲にも影響を及ぼしてしまうことが考えられる。These conventional microphone covers protect only the microphone body from contamination and the like, and are considered to be an effective means for the microphone body. However, contamination due to the scattering of droplets such as saliva may affect not only the microphone itself but also the surrounding area, and in the case of a narrow space such as a karaoke box, a wide area of the room.

歌唱時や、会議や演説、講義の際に一般的なマスクを装着して行うと、本来の発声や、表情が発現されにくいと考えられる。If you wear a general mask when singing, at a meeting, giving a speech, or giving a lecture, it is thought that the original vocalization and facial expressions are unlikely to be expressed.

本発明では、これらの問題を解決するために、手指に簡便に装着できることが可能な形状とすることを目的としている。In order to solve these problems, it is an object of the present invention to have a shape that can be easily attached to a finger.

上記の目的を達成するための方法として、請求項１の発明は、指に装着できる飛沫飛散防止カバーとした。As a method for achieving the above object, the invention of claim 1 is a splash-prevention cover that can be worn on a finger.

請求項２の発明は、請求項１の発明に手袋状の物を組み合わせ、マイクを持つ際に直接触れることのない形態とした。The invention of claim 2 is a combination of the invention of claim 1 with a glove-like object, and has a form in which the microphone is not directly touched.

請求項３の発明は、請求項１ないし２の発明にマイクの集音部カバーを付加した。The invention of claim 3 adds a sound collecting part cover of a microphone to the invention of claims 1 and 2.

請求項１の発明は、飛沫飛散防止カバーとして、顔面の口まわりを対面から見た場合に、十分に覆って見えない程度の大きさとして、装着は指に取り付ける形態としたことにより、マイク本体はそのまま使用できることを特徴とする。According to the first aspect of the present invention, as a splash prevention cover, the size of the cover is such that the area around the mouth of the face is sufficiently covered and cannot be seen when viewed from the face, and the microphone body is attached to the finger. Is characterized by being able to be used as it is.

請求項２の発明は、請求項１の発明に手袋状の物を組み合わせることにより、マイク本体を直接触れることのないことを特徴とする。The invention of claim 2 is characterized in that by combining the invention of claim 1 with a glove-like object, the microphone body is not directly touched.

請求項３の発明は、請求項１ないし２の発明にマイク集音部カバーを組み合わせることにより、さらにマイクへの接触や汚染の低減ができることを特徴とする。また、この発明のみでも使用できる。The invention of claim 3 is characterized in that by combining the invention of claims 1 and 2 with a microphone sound collecting unit cover, contact with the microphone and contamination can be further reduced. Moreover, it can be used only by this invention.

請求項４の発明は、飛沫飛散防止カバーの影響によるマイクへの集音障害や、飛沫飛散の更なる抑制のため、スポンジ材や不織布など、吸音やフィルター機能または、吸着の機能がある材質を、飛沫飛散カバーに組み込むことを可能な構造とした。The invention of claim 4 uses a material having a sound absorbing function, a filter function, or an adsorption function, such as a sponge material or a non-woven fabric, in order to further suppress the sound collection disorder to the microphone due to the influence of the splash prevention cover and the splash scattering. , The structure can be incorporated into the splash cover.

飛沫飛散防止カバー各部 Each part of the splash prevention cover 飛沫飛散防止カバー手指試着時 Splash prevention cover When trying on fingers 飛散飛沫防止カバー実施形態 Scattering splash prevention cover embodiment 飛沫飛散カバー手袋状実施形態 Splash splash cover glove-like embodiment マイク集音部カバー各部 Microphone sound collector cover parts 飛沫飛散防止カバーマイク集音部カバー実施形態 Splash scattering prevention cover Microphone sound collecting unit cover Embodiment 飛沫飛散防止カバーマイク集音部カバー手袋状実施形態図 Splash prevention cover Microphone sound collecting part cover Gloves-like embodiment 飛沫飛散防止カバーフィルター等実施形態 Embodiments such as a splash prevention cover filter

以下、本発明の実施の形態を図１から図８に基づいて説明する。Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 8.

図１は、飛沫飛散防止カバー１１の各部を示す。図１にて、飛沫飛散防止カバー板部０１は使用者の顔面を対面から見たときに、口まわりを十分に覆って直接対面より口が見えず、且つ、飛沫を十分に止めることのできる適宜な大きさを有する軟質な樹脂、紙、木など柔軟性のある材質を用いることが望ましい。もちろん金属や硬質な樹脂でも製作できる。手指装着部０２は手指に付けることのできる環状、または環状にすることのできるマジックテープなどの形態とし、環状の場合は伸縮性ならびに追従性のある樹脂、ゴムなどを用いることにより、手指への装着を容易、且つ、確実に行うことが出来る。FIG. 1 shows each part of the splash prevention cover 11. In FIG. 1, when the user's face is viewed from the face-to-face, the splash-scattering prevention cover plate 01 sufficiently covers the mouth area so that the mouth cannot be seen directly from the face-to-face and can sufficiently stop the splash. It is desirable to use a flexible material such as soft resin, paper, or wood that has an appropriate size. Of course, it can also be manufactured with metal or hard resin. The finger mounting portion 02 is in the form of an annular shape that can be attached to the fingers, or a magic tape that can be formed into an annular shape. It can be installed easily and reliably.

図２においては、飛沫飛散防止カバー１１を、手指１２の右手人差し指の第２関節と指の付け根の間に取り付けた状態を示す。FIG. 2 shows a state in which the splash prevention cover 11 is attached between the second joint of the index finger of the right hand of the finger 12 and the base of the finger.

図３は、図２の状態において、マイク１３を握った状態を表す。マイク１３は飛沫飛散防止カバー１１の向こう側に位置する。FIG. 3 shows a state in which the microphone 13 is held in the state of FIG. The microphone 13 is located on the other side of the splash prevention cover 11.

図４は、手袋状１２に、飛沫飛散防止カバー１１を取り付けたて実施している状態を示す。手袋状１２を使用することにより、直接マイク１３に触れることなく、マイク１３の使いまわしが行えるようになる。FIG. 4 shows a state in which the splash prevention cover 11 is attached to the glove-shaped 12 and carried out. By using the glove-shaped 12, the microphone 13 can be reused without directly touching the microphone 13.

図５は、マイク集音部カバー１５の各部を示す。マイク集音部カバーカバー部０３は、飛沫飛散防止カバー１１の手指装着部０２と同様の物により手指に取り付けるため、一般的に使用されているマイクの集音部を覆える適当な大きさあれば、マイク集音部カバーカバー部０３自体に、マイク本体へ取り付け方法などの実施が不要である。機能上、材質は発生した音声を阻害せずマイクへ伝達することのできる材質が望ましく、軟質な樹脂、紙などが適しているが、金属や硬質な樹脂でも製作できる。FIG. 5 shows each part of the microphone sound collecting part cover 15. Since the microphone sound collecting part cover cover part 03 is attached to the fingers by the same thing as the hand mounting part 02 of the splash prevention cover 11, it should have an appropriate size to cover the sound collecting part of a commonly used microphone. For example, it is not necessary to implement a method of attaching the microphone to the main body of the microphone sound collecting portion cover cover portion 03 itself. In terms of function, the material is preferably a material that can transmit to the microphone without disturbing the generated voice, and soft resin, paper, etc. are suitable, but metal or hard resin can also be manufactured.

図６は、図３の状態にマイク集音部カバー１５を実施した形態を示す。マイク集音部カバー１５は、飛沫飛散防止カバー１１とともに、手指１２の右手人差し指の第２関節と指の付け根の間に取り付けた状態で、手前より、飛沫飛散防止カバー１１、マイク集音部カバー１５、マイク集音部カバー１５の中にマイク１３がある状態を表す。FIG. 6 shows a mode in which the microphone sound collecting unit cover 15 is implemented in the state of FIG. The microphone sound collecting part cover 15 is attached between the second joint of the right index finger of the finger 12 and the base of the finger together with the splashing prevention cover 11, and the splashing prevention cover 11 and the microphone sound collecting part cover are attached from the front. 15. Represents a state in which the microphone 13 is inside the microphone sound collecting unit cover 15.

図７は、図４の状態にマイク集音部カバー１５を実施した形態を示す。この状態においては、使用者は手袋状１２を介して、マイク１３を握り、その状態でマイク１３の集音部に、マイク集音部カバー１５を、装着している手指に対して回転するように被せ、飛沫飛散防止カバー１１の位置を調整することにより、
マイク１３には触れることが無く、且つ、飛沫によるマイク１３の汚染や、周辺への飛沫の飛散を抑制する効果が期待できる。FIG. 7 shows a mode in which the microphone sound collecting unit cover 15 is implemented in the state of FIG. In this state, the user grips the microphone 13 through the glove-shaped 12, and in that state, the microphone sound collecting part cover 15 is rotated with respect to the finger attached to the sound collecting part of the microphone 13. By adjusting the position of the splash prevention cover 11
The microphone 13 is not touched, and the effect of suppressing contamination of the microphone 13 by droplets and scattering of droplets to the surroundings can be expected.

図８は、飛沫飛散防止カバー１１に、スポンジ材など１６を取り付けた状態を示す。マイク１３の直近に飛沫飛散防止カバー１１が位置した場合、音声が飛沫飛散防止カバー１１に反響して、マイク１３の集音の障害になることが予想できる。この集音障害の抑制と、周辺への飛沫飛散の更なる抑制のために、スポンジ材や不織布などを、スポンジ材など１６として、飛沫飛散防止カバー１１に取り付けることにより、これらの吸音、飛沫の吸着対策とすると同時に、このスポンジ材など１６を使い捨てとして交換可能な構造とする。FIG. 8 shows a state in which 16 such as a sponge material is attached to the splash prevention cover 11. When the splash prevention cover 11 is located in the immediate vicinity of the microphone 13, it can be expected that the sound echoes on the splash prevention cover 11 and interferes with the sound collection of the microphone 13. In order to suppress this sound collection disorder and further suppress the scattering of droplets to the surroundings, by attaching a sponge material, a non-woven fabric, or the like as a sponge material 16 to the splash scattering prevention cover 11, the sound absorption and the droplets can be removed. At the same time as taking measures against adsorption, 16 such as this sponge material will be disposable and replaceable.

その他の実施形態Other embodiments

本発明は、上記記述及び図面にて説明した実施形態に限定されるものではなく、例として、本発明の実施形態の説明では、飛沫飛散防止カバー１１は簡易に板状にて説明をしているが、くちばし状や皿形状などの形態でも同様の効果があるものは適用することができ、また、マイクの使用時にかかわらず、同様に手指で握る動作を伴う、飛沫飛散防止対策に広く適用することが出来る。The present invention is not limited to the embodiment described in the above description and the drawings. As an example, in the description of the embodiment of the present invention, the splash prevention cover 11 is simply described in a plate shape. However, it can be applied to those that have the same effect in the form of a beak or a dish, and it is also widely applied to prevent splashing, which involves the same gripping motion with fingers regardless of when the microphone is used. Can be done.

０１ 飛沫飛散防止カバー板部
０２ 手指装着部
０３ マイク集音部カバーカバー部
１１ 飛沫飛散防止カバー
１２ 手指
１３ マイク
１４ 手袋状
１５ マイク集音部カバー
１６ スポンジ材など01 Splash prevention cover plate 02 Hand mounting part 03 Microphone sound collecting part cover Cover part 11 Splash prevention cover 12 Hands 13 Microphone 14 Gloves 15 Microphone sound collecting part cover 16 Sponge material, etc.

図４は、手袋状１４に、飛沫飛散防止カバー１１を取り付けたて実施している状態を示す。手袋状１４を使用することにより、直接マイク１３に触れることなく、マイク１３の使いまわしが行えるようになる。FIG. 4 shows a state in which the splash prevention cover 11 is attached to the glove-shaped 14 and is carried out. By using the glove-shaped 14 , the microphone 13 can be reused without directly touching the microphone 13.

図５は、マイク集音部カバー１５の各部を示す。マイク集音部カバー部０３は、飛沫飛散防止カバー１１の手指装着部０２と同様の物により手指に取り付けるため、一般的に使用されているマイクの集音部を覆える適当な大きさあれば、マイク集音部カバー部０３自体に、マイク本体へ取り付け方法などの実施が不要である。機能上、材質は発生した音声を阻害せずマイクへ伝達することのできる材質が望ましく、軟質な樹脂、紙などが適しているが、金属や硬質な樹脂でも製作できる。FIG. 5 shows each part of the microphone sound collecting part cover 15. Since the microphone sound collecting part cover part 03 is attached to the fingers by the same thing as the hand mounting part 02 of the splash prevention cover 11, if it has an appropriate size to cover the sound collecting part of a commonly used microphone. It is not necessary to attach the microphone sound collecting unit cover unit 03 itself to the microphone body. In terms of function, the material is preferably a material that can transmit to the microphone without disturbing the generated voice, and soft resin, paper, etc. are suitable, but metal or hard resin can also be manufactured.

図７は、図４の状態にマイク集音部カバー１５を実施した形態を示す。この状態においては、使用者は手袋状１４を介して、マイク１３を握り、その状態でマイク１３の集音部に、マイク集音部カバー１５を、装着している手指に対して回転するように被せ、飛沫飛散防止カバー１１の位置を調整することにより、
マイク１３には触れることが無く、且つ、飛沫によるマイク１３の汚染や、周辺への飛沫の飛散を抑制する効果が期待できる。FIG. 7 shows a mode in which the microphone sound collecting unit cover 15 is implemented in the state of FIG. In this state, the user grips the microphone 13 through the glove-shaped 14 , and in that state, the microphone sound collecting part cover 15 is rotated with respect to the finger attached to the sound collecting part of the microphone 13. By adjusting the position of the splash prevention cover 11
The microphone 13 is not touched, and the effect of suppressing contamination of the microphone 13 by droplets and scattering of droplets to the surroundings can be expected.

０１ 飛沫飛散防止カバー板部
０２ 手指装着部
０３ マイク集音部カバー部
１１ 飛沫飛散防止カバー
１２ 手指
１３ マイク
１４ 手袋状
１５ マイク集音部カバー
１６ スポンジ材 01 Splash prevention cover plate 02 Hand mounting part 03 Microphone sound collecting part cover 11 Splash prevention cover 12 Hands 13 Microphone 14 Gloves 15 Microphone sound collecting part cover 16 Sponge material

Claims (4)

マイク使用時などの発声時の飛沫飛散防止のためのカバー板部と、手指に装着するための装着部を有することを特徴とする飛沫飛散防止カバー。A splash prevention cover characterized by having a cover plate portion for preventing splash scattering when vocalizing when using a microphone, and a mounting portion for mounting on fingers. 手袋状の装置に、上記飛散防止カバーを組み合わせたことを特徴とする請求項１記載の飛沫飛散防止カバー。The splash prevention cover according to claim 1, wherein the glove-shaped device is combined with the above-mentioned shatterproof cover. マイク集音部カバーカバー部と手指装着部を有することを特徴とするマイク集音部カバーを備えた請求項１又は２に記載の飛沫飛散防止カバー。The splash-scattering prevention cover according to claim 1 or 2, further comprising a microphone sound-collecting portion cover and a microphone sound-collecting portion cover. 飛沫飛散防止カバーにマイクの集音障害の抑制ための吸音効果や、飛沫の飛散をさらに抑制するための吸着効果のある材質を取り付けることが出来る特徴を有する請求項１から３のうちいずれかに記載の飛沫飛散防止カバー。Any one of claims 1 to 3 having a feature that a material having a sound absorbing effect for suppressing a sound collection disorder of a microphone and a material having an adsorption effect for further suppressing the scattering of droplets can be attached to the splash scattering prevention cover. The described splash prevention cover.
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JP2020110913A JP6852235B1 (en) 2020-06-02 2020-06-02 Splash prevention cover
PCT/JP2021/019310 WO2021246196A1 (en) 2020-06-02 2021-05-21 Droplet dispersal preventing cover

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0664619U (en) * 1993-02-23 1994-09-13 弘 甲斐野 A device to prevent saliva from scattering for dental treatment
JPH06324685A (en) * 1993-05-12 1994-11-25 Yuzo Mori Sound diffusion preventing device
JPH08186888A (en) * 1995-01-05 1996-07-16 Eitsuu Shoji Kk Microphone cover
JPH09262202A (en) * 1996-03-29 1997-10-07 Mitsubishi Electric Corp Washer aid
JPH11127492A (en) * 1997-10-22 1999-05-11 Cta Co Ltd Microphone for hood and microphone with hood
WO2015003239A1 (en) * 2013-07-12 2015-01-15 Durrani Romana Convenient on/off face mask

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0664619U (en) * 1993-02-23 1994-09-13 弘 甲斐野 A device to prevent saliva from scattering for dental treatment
JPH06324685A (en) * 1993-05-12 1994-11-25 Yuzo Mori Sound diffusion preventing device
JPH08186888A (en) * 1995-01-05 1996-07-16 Eitsuu Shoji Kk Microphone cover
JPH09262202A (en) * 1996-03-29 1997-10-07 Mitsubishi Electric Corp Washer aid
JPH11127492A (en) * 1997-10-22 1999-05-11 Cta Co Ltd Microphone for hood and microphone with hood
WO2015003239A1 (en) * 2013-07-12 2015-01-15 Durrani Romana Convenient on/off face mask

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Title
""（群馬）警戒度２に引き下げ カラオケやバーも休業解除"", 朝日新聞デジタル，[ONLINE], JPN6020032481, 31 May 2020 (2020-05-31), pages 1, ISSN: 0004336166 *

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