P

Inventor

HAYAKAWA SHIGENORI

JP12 patents
⚠️ This page may combine multiple inventors who share the name “HAYAKAWA SHIGENORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LUMENTUM JAPAN INC

4 patents
US11329450B2May 10, 2022

Electro-absorption optical modulator and manufacturing method thereof

LUMENTUM JAPAN INC5 citations72
US12136797B2Nov 5, 2024

Semiconductor optical device and optical transceiver module

LUMENTUM JAPAN INC0 citations60
US11133646B2Sep 28, 2021

Semiconductor optical device and optical transceiver module

LUMENTUM JAPAN INC1 citations60
US11462886B2Oct 4, 2022

Buried-type semiconductor optical device

LUMENTUM JAPAN INC0 citations50

SEMICONDUCTOR ENERGY LAB

3 patents
US6833313B2Dec 21, 2004

Method of manufacturing semiconductor device by implanting rare gas ions

SEMICONDUCTOR ENERGY LAB17 citations90
US7772052B2Aug 10, 2010

Method of manufacturing semiconductor device

SEMICONDUCTOR ENERGY LAB0 citations50
US7615473B2Nov 10, 2009

Method of introducing ion and method of manufacturing semiconductor device

SEMICONDUCTOR ENERGY LAB0 citations39

OPNEXT JAPAN INC

2 patents
US7687295B2Mar 30, 2010

Method for manufacturing optical semiconductor device

OPNEXT JAPAN INC2 citations61
US7998766B2Aug 16, 2011

Semiconductor element and manufacturing method thereof

OPNEXT JAPAN INC0 citations41

MITSUBISHI CHEM IND

1 patent
US5200288AApr 6, 1993

Electrostatic developing toner with hydroxyaromatic carboxylic acid additive

MITSUBISHI CHEM IND19 citations80

OCLARO JAPAN INC

1 patent
US10230008B2Mar 12, 2019

Semiconductor light receiving device, optical receiver module and manufacturing method thereof

OCLARO JAPAN INC0 citations48

SUMI SEIJI

1 patent
US8488918B2Jul 16, 2013

Semiconductor optical device, optical transmitter module, optical transceiver module, and optical transmission equipment

SUMI SEIJI0 citations43