Kazuyoshi Okamura

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
High-pressure discharge lamp, turning-on circuit device, and lighti...
- Patent number 5,994,823
- Issue date Nov 30, 1999
- Toshiba Lighting & Technology Corporation
- Kazuyoshi Okamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride layer for discharge lamps
- Patent number 5,668,440
- Issue date Sep 16, 1997
- Toshiba Lighting & Technology Corporation
- Shinji Inukai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High-pressure discharge lamp and lighting method
- Patent number 5,276,385
- Issue date Jan 4, 1994
- Toshiba Lighting & Technology Corporation
- Akira Itoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Sodium lamp
- Patent number D334071
- Issue date Mar 16, 1993
- Toshiba Lighting & Technology Corporation
- Akira Itoh
- D26 - Lighting
Information Patent Grant
Ceramic electric-discharge lamp incorporating arc tube having at le...
- Patent number 5,182,486
- Issue date Jan 26, 1993
- Toshiba Lighting & Technology Corporation
- Akira Itoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High pressure sodium lamp with sodium amalgam of controlled amount...
- Patent number 4,950,953
- Issue date Aug 21, 1990
- Kabushiki Kaisha Toshiba
- Akira Ito
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
HIGH-INTENSITY DISCHARGE LAMP AND LIGHTING DEVICE
- Publication number 20100237797
- Publication date Sep 23, 2010
- OSRAM-MELCO TOSHIBA LIGHTING LTD.
- Hiroyuki OGATA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COATING LIQUID FOR DIFFUSING FILM OF HIGH-PRESSURE DISCHARGE LAMP A...
- Publication number 20100127609
- Publication date May 27, 2010
- Toshiba Lighting & Technology Corporation
- Miho Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
HIGH-PRESSURE DISCHARGE LAMP AND LIGHTING EQUIPMENT
- Publication number 20090267480
- Publication date Oct 29, 2009
- Toshiba Lighting & Technology Corporation
- Akira Kawakatsu
- H01 - BASIC ELECTRIC ELEMENTS