P

Inventor

SASAKI SHINYA

JP95 patents
⚠️ This page may combine multiple inventors who share the name “SASAKI SHINYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

29 patents
US5515196AMay 7, 1996

Optical intensity and phase modulators in an optical transmitter apparatus

HITACHI LTD158 citations98
US5500756AMar 19, 1996

Optical fiber transmission system and supervision method of the same

HITACHI LTD183 citations97
US6532320B1Mar 11, 2003

Equipments, transpondor and methods for optical fiber transmission

HITACHI LTD55 citations96
US5555477ASep 10, 1996

Optical transmission system constructing method and system

HITACHI LTD48 citations96
US5396361AMar 7, 1995

Frequency separation stabilization method for optical heterodyne or optical homodyne communication

HITACHI LTD59 citations96
US5323258AJun 21, 1994

Homodyne optical receiver equipment

HITACHI LTD84 citations96
US5305134AApr 19, 1994

Optical frequency division multiplexing transmitter and optical frequency division multiplexing transmission apparatus

HITACHI LTD57 citations96
US6700910B1Mar 2, 2004

Wavelength tunable laser and optical device

HITACHI LTD54 citations94
US5606445AFeb 25, 1997

Optical transmission system

HITACHI LTD35 citations93
US5274490ADec 28, 1993

Optical transmitter, optical receiver and optical transmission apparatus and control method of optical receiver

HITACHI LTD30 citations93
US5023950AJun 11, 1991

Optical transmitter, optical receiver and optical transmission apparatus and control method of optical receiver

HITACHI LTD22 citations93
US4812776AMar 14, 1989

System for amplifying and shaping optical pulses

HITACHI LTD40 citations93
US6266169B1Jul 24, 2001

Optical transmission equipment which transmits an amplified optical data signal and an optical surveillance signal

HITACHI LTD21 citations92
US6005699ADec 21, 1999

Optical wavelength multiplexing system

HITACHI LTD21 citations92
US5812289ASep 22, 1998

Optical repeater and optical transmitter

HITACHI LTD23 citations92
US5408349AApr 18, 1995

Optical frequency division multiplexing transmission system

HITACHI LTD54 citations92
US5144467ASep 1, 1992

Optical tuning method and apparatus suitable for selective reception of optical frequency division multiplex signals

HITACHI LTD26 citations92
US5113524AMay 12, 1992

Quantum state control apparatus, optical receiver and optical communication system

HITACHI LTD40 citations92
US8374504B2Feb 12, 2013

Optical communication system

HITACHI LTD8 citations84
US6850663B2Feb 1, 2005

Equipments including transponder for optical fiber transmission

HITACHI LTD15 citations84
US5861972AJan 19, 1999

Optical multiplex transmission equipment and method

HITACHI LTD12 citations82
US5142402AAug 25, 1992

Polarization diversity optical receiving apparatus and method

HITACHI LTD20 citations82
US7596322B2Sep 29, 2009

Cryptographic-key-generation communication system

HITACHI LTD16 citations79
US6728489B2Apr 27, 2004

Optical transmission system constructing method and system

HITACHI LTD6 citations74
US6018405AJan 25, 2000

Optical transmission equipment which transmits an amplified optical data signal and an optical surveillance signal

HITACHI LTD7 citations74
US5995278ANov 30, 1999

Optical transmission system

HITACHI LTD9 citations74
US5880876AMar 9, 1999

Optical transmission system

HITACHI LTD9 citations74
US5875046AFeb 23, 1999

Optical repeater and optical transmitter

HITACHI LTD9 citations74
US5739932AApr 14, 1998

Optical transmission system constructing method and system

HITACHI LTD8 citations74

FUJITSU LTD

4 patents

NACHI FUJIKOSHI CORP

3 patents

KOKUSAI ELECTRIC CO LTD

2 patents

SAKAI MASANORI

2 patents

MATSUSHITA ELECTRIC WORKS LTD

1 patent

HITACHI COMM TECH LTD

1 patent

MITUTOYO CORP

1 patent

SASAKI SHINYA

1 patent

UNIV TOKYO

1 patent

MANDAI KOHEI

1 patent

AGENCY IND SCIENCE TECHN

1 patent

OHKOSHI SHIN-ICHI

1 patent

SEKINE KENRO

1 patent

KAWASAKI HEAVY IND LTD

1 patent

Showing the top 50 of 95 patents by PatentIndex Score.