P

Inventor

OTSUKA KAZUAKI

JP6 patents
⚠️ This page may combine multiple inventors who share the name “OTSUKA KAZUAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOSHIBA KK

3 patents
US5321716AJun 14, 1994

Distributed Feedback semiconductor laser with controlled phase shift

TOSHIBA KK18 citations72
US7808007B2Oct 5, 2010

Optical semiconductor device

TOSHIBA KK7 citations69
US7611780B2Nov 3, 2009

Lighting device, image pickup apparatus and portable terminal unit

TOSHIBA KK0 citations41

OMRON TATEISI ELECTRONICS CO

1 patent
US4918616AApr 17, 1990

Tool monitoring system

OMRON TATEISI ELECTRONICS CO35 citations86

TOSHIBA MATERIALS CO LTD

1 patent
US7201858B2Apr 10, 2007

Fluorescent substance, method of manufacturing fluorescent substance, and light emitting device using the fluorescent substance

TOSHIBA MATERIALS CO LTD7 citations72

OTSUKA KAZUAKI

1 patent
US8106579B2Jan 31, 2012

Semiconductor light emitting device

OTSUKA KAZUAKI2 citations53