JPH0533068B2 - - Google Patents

Info

Publication number
JPH0533068B2
JPH0533068B2 JP60114297A JP11429785A JPH0533068B2 JP H0533068 B2 JPH0533068 B2 JP H0533068B2 JP 60114297 A JP60114297 A JP 60114297A JP 11429785 A JP11429785 A JP 11429785A JP H0533068 B2 JPH0533068 B2 JP H0533068B2
Authority
JP
Japan
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP60114297A
Other languages
Japanese (ja)
Other versions
JPS61272063A (en
Inventor
Katsutoshi Ando
Original Assignee
Toray Industries
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toray Industries filed Critical Toray Industries
Priority to JP60114297A priority Critical patent/JPH0533068B2/ja
Publication of JPS61272063A publication Critical patent/JPS61272063A/en
Publication of JPH0533068B2 publication Critical patent/JPH0533068B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

JP60114297A 1985-05-29 1985-05-29 Expired - Lifetime JPH0533068B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60114297A JPH0533068B2 (en) 1985-05-29 1985-05-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60114297A JPH0533068B2 (en) 1985-05-29 1985-05-29

Publications (2)

Publication Number Publication Date
JPS61272063A JPS61272063A (en) 1986-12-02
JPH0533068B2 true JPH0533068B2 (en) 1993-05-18

Family

ID=14634337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60114297A Expired - Lifetime JPH0533068B2 (en) 1985-05-29 1985-05-29

Country Status (1)

Country Link
JP (1) JPH0533068B2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4874399A (en) * 1988-01-25 1989-10-17 Minnesota Mining And Manufacturing Company Electret filter made of fibers containing polypropylene and poly(4-methyl-1-pentene)
JPH047011A (en) * 1990-04-23 1992-01-10 Toubu Kk Filter
JPH0451963U (en) * 1990-09-08 1992-05-01
JP2841017B2 (en) * 1993-12-09 1998-12-24 光進電気工業株式会社 Dust mask
WO1996028216A1 (en) 1995-03-09 1996-09-19 Minnesota Mining And Manufacturing Company Fold flat respirators and processes for preparing same
JP4938260B2 (en) * 2005-08-02 2012-05-23 ユニ・チャーム株式会社 Disposable mask
JP5072708B2 (en) * 2008-05-15 2012-11-14 ユニ・チャーム株式会社 mask
JP5419645B2 (en) * 2009-11-12 2014-02-19 三菱重工業株式会社 Mask
JP2014128387A (en) 2012-12-28 2014-07-10 San-M Package Co Ltd Mask
CN103610242B (en) * 2013-12-06 2015-12-02 山东大学 A kind of high efficiency filter PM 2.5c type mouth mask

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3571679A (en) * 1968-10-14 1971-03-23 Tno Device for forming electrets
JPS5340073A (en) * 1976-09-25 1978-04-12 Nitta Belt Kk Method of formation of electlet pole using porous sheet
JPS5453365A (en) * 1977-10-04 1979-04-26 Nitta Belt Kk Construction of filter medium for air filter employing electret
JPS5663374A (en) * 1979-10-24 1981-05-29 American Cyanamid Co Dustproof respirator
JPS5753259A (en) * 1980-08-08 1982-03-30 Minnesota Mining & Mfg Filter medium constituted from different charge layer
JPS5745952B2 (en) * 1975-05-16 1982-09-30
US4375718A (en) * 1981-03-12 1983-03-08 Surgikos, Inc. Method of making fibrous electrets
JPS59124A (en) * 1983-05-23 1984-01-05 Hitachi Ltd Optical system
JPS5990612A (en) * 1982-11-12 1984-05-25 Hitachi Ltd Filter for cleaning air
JPS59156355A (en) * 1983-02-25 1984-09-05 Minato Seiyaku Kk Production of dust protecting ionizing mask

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5598327U (en) * 1978-12-28 1980-07-08
JPS5745952U (en) * 1980-08-30 1982-03-13
NL8300437A (en) * 1983-02-04 1984-09-03 Tno Continuous electret filter medium manufacture - uses a substantially closed supporting dielectric foil

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3571679A (en) * 1968-10-14 1971-03-23 Tno Device for forming electrets
JPS5745952B2 (en) * 1975-05-16 1982-09-30
JPS5340073A (en) * 1976-09-25 1978-04-12 Nitta Belt Kk Method of formation of electlet pole using porous sheet
JPS5453365A (en) * 1977-10-04 1979-04-26 Nitta Belt Kk Construction of filter medium for air filter employing electret
JPS5663374A (en) * 1979-10-24 1981-05-29 American Cyanamid Co Dustproof respirator
JPS5753259A (en) * 1980-08-08 1982-03-30 Minnesota Mining & Mfg Filter medium constituted from different charge layer
US4375718A (en) * 1981-03-12 1983-03-08 Surgikos, Inc. Method of making fibrous electrets
JPS5990612A (en) * 1982-11-12 1984-05-25 Hitachi Ltd Filter for cleaning air
JPS59156355A (en) * 1983-02-25 1984-09-05 Minato Seiyaku Kk Production of dust protecting ionizing mask
JPS59124A (en) * 1983-05-23 1984-01-05 Hitachi Ltd Optical system

Also Published As

Publication number Publication date
JPS61272063A (en) 1986-12-02

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