P

Inventor

MOCHIZUKI KIYOFUMI

JP14 patents
⚠️ This page may combine multiple inventors who share the name “MOCHIZUKI KIYOFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KOKUSAI DENSHIN DENWA CO LTD

11 patents
US4972513ANov 20, 1990

Multi-point optical amplification repeating system

KOKUSAI DENSHIN DENWA CO LTD26 citations92
US4923291AMay 8, 1990

Optical amplification

KOKUSAI DENSHIN DENWA CO LTD47 citations92
US4899043AFeb 6, 1990

Fault monitoring system for optical fiber communication systems

KOKUSAI DENSHIN DENWA CO LTD28 citations92
US4572608AFeb 25, 1986

Optical de-polarizer

KOKUSAI DENSHIN DENWA CO LTD28 citations90
US4720162AJan 19, 1988

Device for switching from one light source to another

KOKUSAI DENSHIN DENWA CO LTD36 citations89
US4790655ADec 13, 1988

System for measuring laser spectrum

KOKUSAI DENSHIN DENWA CO LTD8 citations74
US4933990AJun 12, 1990

Optical privacy communication system in two-way optical transmission system

KOKUSAI DENSHIN DENWA CO LTD7 citations73
US4888817ADec 19, 1989

Polarization diversity light receiving system using baseband combining

KOKUSAI DENSHIN DENWA CO LTD17 citations73
US4411520AOct 25, 1983

Light dispersion measuring apparatus

KOKUSAI DENSHIN DENWA CO LTD10 citations73
US5048922ASep 17, 1991

Optical fiber cable

KOKUSAI DENSHIN DENWA CO LTD3 citations61
US4595284AJun 17, 1986

Method and apparatus for measuring distribution of elongation in an optical cable

KOKUSAI DENSHIN DENWA CO LTD4 citations61

OKI ELECTRIC IND CO LTD

1 patent
US4805977AFeb 21, 1989

Optical coupler for optical direct amplifier

OKI ELECTRIC IND CO LTD132 citations97

KOKUSAI DENSHI DENWA KABUSHIKI

1 patent
US4401364AAug 30, 1983

Optical repeater system for optical communication

KOKUSAI DENSHI DENWA KABUSHIKI97 citations93

KOKUSAI BENSHIN KABUSHIKI KAIS

1 patent
US5042039AAug 20, 1991

Er-doped optical fiber laser device

KOKUSAI BENSHIN KABUSHIKI KAIS35 citations89