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Yoichi Nishioka
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Water purifying apparatus
Patent number
6,909,101
Issue date
Jun 21, 2005
Yoichi Nishioka
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Light emitting device
Patent number
6,530,679
Issue date
Mar 11, 2003
Yoichi Nishioka
F21 - LIGHTING
Information
Patent Grant
Thermoreversible recording material, thermoreversible recording med...
Patent number
5,310,611
Issue date
May 10, 1994
Oki Electric Industry Co., Ltd.
Yutaka Okabe
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Thermoreversible recording medium, apparatus utilizing the same and...
Patent number
5,262,374
Issue date
Nov 16, 1993
Oki Electric Industry Co., Ltd.
Yutaka Okabe
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Thermoreversible recording medium, apparatus utilizing the same and...
Patent number
5,249,000
Issue date
Sep 28, 1993
Oki Electric Industry Co., Ltd.
Yutaka Okabe
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Thermoreversible recording medium, apparatus utilizing the same and...
Patent number
5,157,011
Issue date
Oct 20, 1992
Oki Electric Industry Co., Ltd.
Yutaka Okabe
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Photoconductor for electrophotography comprises indium phthalocyanine
Patent number
4,731,312
Issue date
Mar 15, 1988
Oki Electric Industry Co., Ltd.
Masakazu Kato
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Phthalocyanine photoconductor for electrophotography
Patent number
4,587,188
Issue date
May 6, 1986
Oki Electric Industry Co., Ltd.
Masakazu Kato
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Water purifying apparatus
Publication number
20040140435
Publication date
Jul 22, 2004
Yoichi Nishioka
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE