Inventor

OKAWA MASAHIRO

JP12 patents

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

HITACHI CABLE

3 patents

US6069990AMay 30, 2000

Optical wavelength multiplexer/demultiplexer

HITACHI CABLE115 citations96

US6549696B1Apr 15, 2003

Optical wavelength multiplexer/demultiplexer

HITACHI CABLE40 citations90

US6556749B2Apr 29, 2003

Array waveguide grating and method of manufacture thereof

HITACHI CABLE17 citations82

IBM

3 patents

US10917487B2Feb 9, 2021

Generating notification digest based on user presence

IBM5 citations72

US10831989B2Nov 10, 2020

Distributing updated communications to viewers of prior versions of the communications

IBM2 citations72

US11120297B2Sep 14, 2021

Segmentation of target areas in images

IBM0 citations62

TOYOTA MOTOR CO LTD

2 patents

US4663251AMay 5, 1987

Zinc-bromine battery

TOYOTA MOTOR CO LTD21 citations81

US4677039AJun 30, 1987

Zinc-bromine battery

TOYOTA MOTOR CO LTD9 citations73

KAIJIMA SOH

2 patents

US8301607B2Oct 30, 2012

Information management server, information processing system, communication method and program

KAIJIMA SOH2 citations59

US9864777B2Jan 9, 2018

Table partitioning and storage in a database

KAIJIMA SOH0 citations50

MASPRO DENKO KK

1 patent

USD599743SSep 8, 2009

High-frequency coaxial connector

MASPRO DENKO KK1 citations44

MENICON CO LTD

1 patent

US9215974B2Dec 22, 2015

Apparatus for optometric self-examination, management server and contact lens selection system

MENICON CO LTD0 citations28