Keiji Izumi

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Patents Grantslast 30 patents

Information Patent Grant
Metallic roof material and roofing method using same
- Patent number 11,261,603
- Issue date Mar 1, 2022
- NIPPON STEEL NISSHIN CO., LTD.
- Keiji Izumi
- E04 - BUILDING
Information Patent Grant
Metal roofing material, and roofing structure and roofing method us...
- Patent number 10,597,874
- Issue date Mar 24, 2020
- NIPPON STEEL NISSHIN CO., LTD.
- Keiji Izumi
- E04 - BUILDING
Information Patent Grant
Metal roofing material
- Patent number 10,519,661
- Issue date Dec 31, 2019
- NIPPON STEEL NISSHIN CO., LTD.
- Keiji Izumi
- E04 - BUILDING
Information Patent Grant
Metal roofing member, production method thereof, roofing structure...
- Patent number 10,400,455
- Issue date Sep 3, 2019
- NIPPON STEEL NISSHIN CO., LTD.
- Keiji Izumi
- E04 - BUILDING
Information Patent Grant
Metal roofing member, and roofing structure and roofing method usin...
- Patent number 10,233,645
- Issue date Mar 19, 2019
- Nisshin Steel Co., Ltd.
- Keiji Izumi
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Roof board
- Patent number D841192
- Issue date Feb 19, 2019
- NISSHIN STEEL CO., LTD.
- Keiji Izumi
- D25 - Building units and construction elements
Information Patent Grant
Automatic focusing system for use in cameras having zooming function
- Patent number 5,267,044
- Issue date Nov 30, 1993
- Kabushiki Kaisha Toshiba
- Mitsuyuki Nozaki
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
METALLIC ROOF MATERIAL AND ROOFING METHOD USING SAME
- Publication number 20200199875
- Publication date Jun 25, 2020
- NIPPON STEEL NISSHIN CO., LTD.
- Keiji Izumi
- E04 - BUILDING
Information Patent Application
METAL ROOFING MATERIAL, AND ROOFING STRUCTURE AND ROOFING METHOD US...
- Publication number 20190264448
- Publication date Aug 29, 2019
- Nisshin Steel Co. Ltd
- Keiji Izumi
- E04 - BUILDING
Information Patent Application
METAL ROOFING MATERIAL
- Publication number 20190203473
- Publication date Jul 4, 2019
- Nisshin Steel Co. Ltd
- Keiji Izumi
- E04 - BUILDING
Information Patent Application
METAL ROOFING MATERIAL AND ROOFING METHOD
- Publication number 20190119917
- Publication date Apr 25, 2019
- Nisshin Steel Co. Ltd
- Kenichi Okubo
- G01 - MEASURING TESTING
Information Patent Application
METAL ROOFING MEMBER, AND ROOFING STRUCTURE AND ROOFING METHOD USIN...
- Publication number 20180080228
- Publication date Mar 22, 2018
- NISSHIN STEEL CO., LTD.
- Keiji IZUMI
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
METAL ROOFING MEMBER, PRODUCTION METHOD THEREOF, ROOFING STRUCTURE...
- Publication number 20180066432
- Publication date Mar 8, 2018
- NISSHIN STEEL CO., LTD.
- Keiji IZUMI
- E04 - BUILDING