Hisako Watanabe

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Machida, JP

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Patents Grantslast 30 patents

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Light emitting element driving circuit and light emitting device ha...
- Patent number 6,031,855
- Issue date Feb 29, 2000
- Fujitsu Limited
- Hisako Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser drive
- Patent number 5,563,898
- Issue date Oct 8, 1996
- Fujitsu Limited
- Tadashi Ikeuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cross-connection apparatus for B-ISDN
- Patent number 5,265,088
- Issue date Nov 23, 1993
- Fujitsu Limited
- Yuji Takigawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System for monitoring ATM cross-connecting apparatus by inside-appa...
- Patent number 5,257,311
- Issue date Oct 26, 1993
- Fujitsu Limited
- Hidetoshi Naito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Phase shift circuit
- Patent number 4,935,701
- Issue date Jun 19, 1990
- Fujitsu Limited
- Masaaki Kawai
- H03 - BASIC ELECTRONIC CIRCUITRY