Tomoji Yamaguchi

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor device using LED chip
- Patent number 7,242,033
- Issue date Jul 10, 2007
- Rohm Co., Ltd.
- Shinji Isokawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light emitting diode lamp
- Patent number 7,128,444
- Issue date Oct 31, 2006
- Rohm Co., Ltd.
- Shinji Isokawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device with stable protection coating
- Patent number 6,392,294
- Issue date May 21, 2002
- Rohm Co., Ltd.
- Tomoji Yamaguchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
LED lamp and arrangement for mounting LED lamps on a substrate
- Patent number 5,564,819
- Issue date Oct 15, 1996
- Rohm Co., Ltd.
- Tomoji Yamaguchi
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Semiconductor device using semiconductor chip
- Publication number 20070246731
- Publication date Oct 25, 2007
- ROHM CO., LTD.
- Shinji Isokawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor device using semiconductor chip
- Publication number 20050156187
- Publication date Jul 21, 2005
- Shinji Isokawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Light emitting diode lamp
- Publication number 20050116246
- Publication date Jun 2, 2005
- ROHM CO. LTD.
- Shinji Isokawa
- H01 - BASIC ELECTRIC ELEMENTS