P

Inventor

TAKEMASA KEIZO

JP7 patents
⚠️ This page may combine multiple inventors who share the name “TAKEMASA KEIZO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DENSO CORP

4 patents
US12548983B2Feb 10, 2026

Optical semiconductor device and semiconductor laser device

DENSO CORP0 citations50
US12360405B2Jul 15, 2025

Optical semiconductor device

DENSO CORP0 citations50
US12149053B2Nov 19, 2024

Semiconductor device

DENSO CORP0 citations50
US11764546B2Sep 19, 2023

Semiconductor laser device

DENSO CORP0 citations50

QD LASER INC

1 patent
US9865771B2Jan 9, 2018

Semiconductor light-emitting element

QD LASER INC0 citations50

OKI ELECTRIC IND CO LTD

1 patent
US6387746B2May 14, 2002

Method of fabricating semiconductor laser diode

OKI ELECTRIC IND CO LTD1 citations49

KUBOTA MUNECHIKA

1 patent
US8277131B2Oct 2, 2012

Semiconductor optical communication module and manufacturing method thereof

KUBOTA MUNECHIKA0 citations30