Inventor

TSUTSUMI TAKEHARU

JP6 patents

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

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

4 patents

US6559600B1May 6, 2003

Discharge lamp, light source and projecting display unit

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations83

US6897613B2May 24, 2005

Discharge lamp, light source and projecting display unit

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations72

US6479946B2Nov 12, 2002

Method and system for driving high pressure mercury discharge lamp, and image projector

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations62

USRE38807EOct 4, 2005

High pressure discharge lamp, with tungsten electrode and lighting optical apparatus and image display system using the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations59

MATSUSHITA ELECTRONICS CORP

2 patents

US6211616B1Apr 3, 2001

High pressure discharge lamp, with tungsten electrode and lighting optical apparatus and image display system using the same

MATSUSHITA ELECTRONICS CORP51 citations93

US6232720B1May 15, 2001

High-pressure mercury vapor discharge lamp

MATSUSHITA ELECTRONICS CORP7 citations70