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Katsuaki Kaifu
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method of manufacturing field effect transistor having Ohmic electr...
Patent number
8,202,794
Issue date
Jun 19, 2012
Oki Electric Industry Co., Ltd.
Juro Mita
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Field effect transistor having Ohmic electrode in a recess
Patent number
7,923,753
Issue date
Apr 12, 2011
Oki Electric Industry Co., Ltd.
Juro Mita
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Etching method, method of fabricating metal film structure, and etc...
Patent number
7,393,791
Issue date
Jul 1, 2008
Oki Electric Industry Co., Ltd.
Katsuaki Kaifu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Polymer material for use in optical communication parts
Patent number
6,624,255
Issue date
Sep 23, 2003
Oki Electric Industry Co., Ltd.
Takeshi Koyano
G02 - OPTICS
Information
Patent Grant
Polymer pattern forming method
Patent number
6,372,411
Issue date
Apr 16, 2002
Oki Electric Industry Co., Ltd.
Takeshi Koyano
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Optical waveguide made of polymer material and a method of fabricat...
Patent number
6,327,415
Issue date
Dec 4, 2001
Oki Electric Industry Co., Ltd.
Takeshi Koyano
G02 - OPTICS
Information
Patent Grant
Diazonium salt for thermosensitive recording medium
Patent number
5,935,756
Issue date
Aug 10, 1999
Oki Electric Industry Co., Ltd.
Katsuaki Kaifu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for forming photoresist pattern using contrast enhancement...
Patent number
4,889,795
Issue date
Dec 26, 1989
Oki Electric Industry Co., Ltd.
Katsuaki Kaifu
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
Method of manufacturing field effect transistor having Ohmic electr...
Publication number
20110189826
Publication date
Aug 4, 2011
Oki Electric Industry Co., Ltd.
Juro Mita
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Etching structure
Publication number
20080241469
Publication date
Oct 2, 2008
Oki Electric Industry Co., Ltd.
Katsuaki Kaifu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Ohmic electrode, method of manufacturing Ohmic electrode, field eff...
Publication number
20070051978
Publication date
Mar 8, 2007
Oki Electric Industry Co., Ltd.
Juro Mita
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Etching method, method of fabricating metal film structure, and etc...
Publication number
20070049031
Publication date
Mar 1, 2007
Oki Electric Industry Co., Ltd.
Katsuaki Kaifu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Surface treatment method for a compound semiconductor layer and met...
Publication number
20040192043
Publication date
Sep 30, 2004
Oki Electric Industry Co., Ltd.
Takehiko Makita
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Optical waveguide made of polymer material and a method of fabricat...
Publication number
20020021883
Publication date
Feb 21, 2002
Takeshi Koyano
G02 - OPTICS