P

Inventor

OKANO HIROAKI

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

HITACHI LTD

3 patents
US6219472B1Apr 17, 2001

Optical switch, method of manufacturing same, and optical communication equipment using the same

HITACHI LTD41 citations91
US5903697AMay 11, 1999

Optical waveguide, method of making the same and integrated optical device

HITACHI LTD12 citations73
US6487330B2Nov 26, 2002

Optical switch, method of manufacturing same, and optical communication equipment using same

HITACHI LTD8 citations72

KUBOTA KK

3 patents
US11131230B2Sep 28, 2021

Exhaust treatment device for diesel engine

KUBOTA KK0 citations51
US10890090B2Jan 12, 2021

Engine

KUBOTA KK0 citations51
US11499492B2Nov 15, 2022

Diesel engine

KUBOTA KK0 citations47

HITACHI CABLE

2 patents
US5949945ASep 7, 1999

Optical waveguide, optical module and optical system using the same

HITACHI CABLE29 citations86
US7415183B2Aug 19, 2008

Silica based glass waveguide and optical module using the same

HITACHI CABLE3 citations61

HIROSE ELECTRIC CO LTD

1 patent
US7488119B2Feb 10, 2009

Photoelectric composite connector and substrate using the same

HIROSE ELECTRIC CO LTD13 citations83

OKANO HIROAKI

1 patent
US8685328B2Apr 1, 2014

Method for purifying inside of room

OKANO HIROAKI5 citations63

AGILENT TECHNOLOGIES INC

1 patent
US6668107B2Dec 23, 2003

Method and apparatus for reducing optical insertion loss in planar lightwave circuits through dielectric perturbation optimization

AGILENT TECHNOLOGIES INC3 citations62

NIPPON PAINT CO LTD

1 patent
US7657145B2Feb 2, 2010

Method for fabrication of multilayered optical waveguide structure and multilayered optical waveguide structure

NIPPON PAINT CO LTD1 citations51

SHARP KK

1 patent
US11383201B2Jul 12, 2022

Humidity controller

SHARP KK0 citations50

SHIBUYA ICHIRO

1 patent
US9005683B2Apr 14, 2015

Method for producing yeast with high glutamic acid content

SHIBUYA ICHIRO0 citations33