Keiji Negi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Pattern synchronous circuit
- Patent number 6,928,089
- Issue date Aug 9, 2005
- Ando Electric Co., Ltd.
- Keiji Negi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pull-in circuit for pseudo-random pattern
- Patent number 6,181,730
- Issue date Jan 30, 2001
- Ando Electric Co., Ltd.
- Keiji Negi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light modulation device
- Patent number 5,745,282
- Issue date Apr 28, 1998
- Ando Electric Co., Ltd.
- Keiji Negi
- G02 - OPTICS
Information Patent Grant
Bit error measurement circuit
- Patent number 5,732,089
- Issue date Mar 24, 1998
- Ando Electric Co., Ltd.
- Keiji Negi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pseudo-random pattern generating circuit
- Patent number 5,638,309
- Issue date Jun 10, 1997
- Ando Electric Co., Ltd.
- Keiji Negi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Counter circuit having load function
- Patent number 5,600,695
- Issue date Feb 4, 1997
- Ando Electric Co., Ltd.
- Keiji Negi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Synchronization detecting circuit
- Patent number 5,528,635
- Issue date Jun 18, 1996
- Ando Electric Co., Ltd.
- Keiji Negi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE