Keiichi Matsumoto

Follow

Person

Himeji-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Discharge lamp lighting apparatus
- Patent number 9,137,881
- Issue date Sep 15, 2015
- Ushio Denki Kabushiki Kaisha
- Koji Yamada
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Ultra-high pressure mercury lamp
- Patent number 7,649,319
- Issue date Jan 19, 2010
- Ushiodenki Kabushiki Kaisha
- Keiichi Matsumoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Low pressure discharge lamp having electrodes with a lithium-contai...
- Patent number 5,962,977
- Issue date Oct 5, 1999
- Ushiodenki Kabushiki Kaisha
- Keiichi Matsumoto
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
DISCHARGE LAMP LIGHTING APPARATUS
- Publication number 20130271024
- Publication date Oct 17, 2013
- Ushio Denki Kabushiki Kaisha
- Koji Yamada
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
ULTRA-HIGH PRESSURE MERCURY LAMP
- Publication number 20060273722
- Publication date Dec 7, 2006
- Ushiodenki Kabushiki Kaisha
- Keiichi MATSUMOTO
- H01 - BASIC ELECTRIC ELEMENTS