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name:-0.015851020812988
name:-0.0082311630249023
Tokunaga; Yuzo Patent Filings

Tokunaga; Yuzo

Patent Applications and Registrations

Patent applications and USPTO patent grants for Tokunaga; Yuzo.The latest application filed is for "magnetic carrier and two-component developer".

Company Profile
8.16.21
  • Tokunaga; Yuzo - Chiba JP
  • Tokunaga; Yuzo - Chiba-shi JP
  • Tokunaga; Yuzo - Yokohama N/A JP
  • TOKUNAGA; Yuzo - Yokohama-shi JP
*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.
Patent Activity
PatentDate
Magnetic Carrier And Two-component Developer
App 20220269189 - Nishimura; Yuu ;   et al.
2022-08-25
Magnetic Carrier, Two-component Developer, And Developer For Replenishment
App 20220236659 - Yoshida; Nobuhiro ;   et al.
2022-07-28
Liquid developer and image-forming method
Grant 11,281,120 - Tokunaga , et al. March 22, 2
2022-03-22
Liquid developer
Grant 11,188,005 - Miyakai , et al. November 30, 2
2021-11-30
Liquid developer and method of producing liquid developer
Grant 11,181,848 - Ochi , et al. November 23, 2
2021-11-23
Liquid Developer
App 20210096477 - Miyakai; Tomoyo ;   et al.
2021-04-01
Liquid Developer
App 20210080848 - Tsuchida; Naohiko ;   et al.
2021-03-18
Liquid Developer
App 20210063906 - Tokunaga; Yuzo ;   et al.
2021-03-04
Liquid Developer And Image-forming Apparatus
App 20210033995 - Tokunaga; Yuzo ;   et al.
2021-02-04
Liquid Developer
App 20200409285 - Tokunaga; Yuzo ;   et al.
2020-12-31
Liquid Developer
App 20200409284 - Matsubara; Akifumi ;   et al.
2020-12-31
Liquid Developer And Image-forming Method
App 20200379366 - Tokunaga; Yuzo ;   et al.
2020-12-03
Liquid Developer And Method Of Producing Liquid Developer
App 20200272068 - Ochi; Kouichirou ;   et al.
2020-08-27
Liquid Developer And Method For Producing Liquid Developer
App 20190107794 - Tokunaga; Yuzo ;   et al.
2019-04-11
Liquid developer and manufacturing method of liquid developer
Grant 10,162,281 - Tsuchida , et al. Dec
2018-12-25
Curable Liquid Developer And Method For Producing Curable Liquid Developer
App 20180348658 - Tsuchida; Naohiko ;   et al.
2018-12-06
Curable Liquid Developer And Method For Manufacturing Curable Liquid Developer
App 20180329333 - Tokunaga; Yuzo ;   et al.
2018-11-15
Curable Liquid Developer
App 20180321607 - Matsubara; Akifumi ;   et al.
2018-11-08
Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and condensed polycyclic aromatic compound
Grant 9,946,175 - Nakata , et al. April 17, 2
2018-04-17
Liquid Developer
App 20180046102 - Tsuchida; Naohiko ;   et al.
2018-02-15
Liquid Developer And Manufacturing Method Of Liquid Developer
App 20170371260 - Tsuchida; Naohiko ;   et al.
2017-12-28
Electrophotographic Photosensitive Member, Process Cartridge, Electrophotographic Apparatus, And Condensed Polycyclic Aromatic Compound
App 20170108789 - Nakata; Koichi ;   et al.
2017-04-20
Method of manufacturing organic light emitting device and vapor deposition system
Grant 8,398,774 - Otsuka , et al. March 19, 2
2013-03-19
Method Of Manufacturing Organic Light Emitting Device
App 20120083062 - OTSUKA; Manabu ;   et al.
2012-04-05
Method Of Producing Organic Light Emitting Apparatus
App 20080268136 - Tokunaga; Yuzo ;   et al.
2008-10-30
Method Of Manufacturing Organic Light Emitting Device And Vapor Deposition System
App 20070134405 - OTSUKA; MANABU ;   et al.
2007-06-14
Toner, and process for producing toner
Grant 6,566,028 - Tazawa , et al. May 20, 2
2003-05-20
Toner, and process for producing toner
App 20020197551 - Tazawa, Yayoi ;   et al.
2002-12-26
Toner, and process for producing toner
Grant 6,358,658 - Tazawa , et al. March 19, 2
2002-03-19
Magnetic coated carrier two-component type developer and developing method
Grant 6,165,663 - Baba , et al. December 26, 2
2000-12-26
Process for producing toner particles
Grant 6,106,990 - Tazawa , et al. August 22, 2
2000-08-22
Magnetic brush developing method
Grant 6,083,655 - Itabashi , et al. July 4, 2
2000-07-04
Two-component type developer, developing method and image forming method
Grant 6,010,811 - Baba , et al. January 4, 2
2000-01-04
Magnetic coated carrier, two-component type developer and developing method
Grant 5,766,814 - Baba , et al. June 16, 1
1998-06-16
Two-component type developer, developing method and image forming method
Grant 5,712,069 - Baba , et al. January 27, 1
1998-01-27
Carrier for electrophotography, process for its production, two-component type developer, and image forming method
Grant 5,573,880 - Mayama , et al. November 12, 1
1996-11-12

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