Izumi; Keiji

Patent Applications and Registrations

Patent applications and USPTO patent grants for Izumi; Keiji.The latest application filed is for "metallic roof material and roofing method using same".

Company Profile

10.13.16

Izumi; Keiji - Tokyo JP
Izumi; Keiji - Ichikawa JP
Izumi; Keiji - Takaishi JP
Izumi; Keiji - Hyogo JP
IZUMI; Keiji - Ichikawa-shi Chiba
Izumi; Keiji - Osaka JP
Izumi; Keiji - Sakai JP
IZUMI; Keiji - Osaka-shi JP
Izumi; Keiji - Hino JP
Izumi, Keiji - Hino-shi JP
Izumi, Keiji - Ishizu-Nishimachi Sakai-shi Osaka 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

Patent	Date
Metallic roof material and roofing method using same Grant 11,261,603 - Izumi , et al. March 1, 2	2022-03-01
Metal roofing material and roofing method Grant 10,724,242 - Okubo , et al.	2020-07-28
Metallic Roof Material And Roofing Method Using Same App 20200199875 - Izumi; Keiji ; et al.	2020-06-25
Metal roofing material, and roofing structure and roofing method using same Grant 10,597,874 - Izumi , et al.	2020-03-24
Metal roofing material Grant 10,519,661 - Izumi , et al. Dec	2019-12-31
Metal roofing member, production method thereof, roofing structure and roofing method Grant 10,400,455 - Izumi , et al. Sep	2019-09-03
Metal Roofing Material, And Roofing Structure And Roofing Method Using Same App 20190264448 - Izumi; Keiji ; et al.	2019-08-29
Metal Roofing Material App 20190203473 - Izumi; Keiji ; et al.	2019-07-04
Metal Roofing Material And Roofing Method App 20190119917 - Okubo; Kenichi ; et al.	2019-04-25
Metal roofing member, and roofing structure and roofing method using same Grant 10,233,645 - Izumi , et al.	2019-03-19
Roof board Grant D841,192 - Izumi , et al. Feb	2019-02-19
Structure Of Removing Static Electricity In Low-humidity Space App 20180213631 - Sakamoto; Taichi ; et al.	2018-07-26
Metal Roofing Member, And Roofing Structure And Roofing Method Using Same App 20180080228 - IZUMI; Keiji ; et al.	2018-03-22
Metal Roofing Member, Production Method Thereof, Roofing Structure And Roofingmethod App 20180066432 - IZUMI; Keiji ; et al.	2018-03-08
Dye-sensitized Solar Cell App 20110180141 - Nishida; Yoshikatu ; et al.	2011-07-28
Separator for low-temperature type fuel cell and production method therefor Grant 7,879,508 - Miyano , et al. February 1, 2	2011-02-01
Separator for low-temperature type fuel cell and production method therefor Grant 7,608,119 - Miyano , et al. October 27, 2	2009-10-27
Separator for Low-Temperature Type Fuel Cell and Production Method Therefor App 20090130535 - Miyano; Tsutomu ; et al.	2009-05-21
Display Device Using Light Storage Material And Method Of Manufacturing The Same App 20080169747 - IZUMI; Keiji	2008-07-17
Stainless steel separator for low-temperature fuel cell Grant 7,070,877 - Morita , et al. July 4, 2	2006-07-04
Ink jet printer Grant 7,008,052 - Yamada , et al. March 7, 2	2006-03-07
Fuel tank made from aluminum coated steel sheet Grant 6,905,041 - Taketsu , et al. June 14, 2	2005-06-14
Ink jet printer App 20040257410 - Yamada, Takahisa ; et al.	2004-12-23
Stainless steel separator for low-temperature fuel cell App 20030224236 - Morita, Yoshikazu ; et al.	2003-12-04
Separator for low-temperature type fuel cell and production method therefor App 20030170523 - Miyano, Tsutomu ; et al.	2003-09-11
Image recording apparatus Grant 6,568,784 - Izumi , et al. May 27, 2	2003-05-27
Image recording apparatus App 20020130915 - Izumi, Keiji ; et al.	2002-09-19
Image forming apparatus App 20020130922 - Okawa, Kenichi ; et al.	2002-09-19
Chemically processed steel sheet improved in corrosion resistance App 20020090529 - Ueda, Kouichiro ; et al.	2002-07-11

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