Kenji Kawabata

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Device for turning on light and illumination apparatus
- Patent number 6,734,641
- Issue date May 11, 2004
- Hitachi, Ltd.
- Hiroyuki Shoji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Inverter type illumination lighting apparatus
- Patent number 6,683,418
- Issue date Jan 27, 2004
- Hitachi, Ltd.
- Hiroyuki Shoji
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Device for turning on light and illumination apparatus
- Patent number 6,570,343
- Issue date May 27, 2003
- Hitachi, Ltd.
- Hiroyuki Shoji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Discharge tube lighting apparatus
- Patent number 5,744,916
- Issue date Apr 28, 1998
- International Business Machines Corporation
- Kenji Kawabata
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Power supply apparatus
- Patent number 5,705,920
- Issue date Jan 6, 1998
- International Business Machines Corporation
- Yoshiteru Watanabe
- G05 - CONTROLLING REGULATING
Information Patent Grant
Discharge lamp lighting device
- Patent number 5,621,281
- Issue date Apr 15, 1997
- International Business Machines Corporation
- Kenji Kawabata
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Information processing apparatus including a control circuit for co...
- Patent number 5,384,516
- Issue date Jan 24, 1995
- Hitachi, Ltd.
- Kenji Kawabata
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Discharge lamp operating circuit
- Patent number 5,166,579
- Issue date Nov 24, 1992
- Hitachi, Ltd.
- Kenji Kawabata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Protected discharge lamp lighting system
- Patent number 4,928,037
- Issue date May 22, 1990
- Hitachi, Ltd.
- Kenji Kawabata
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Discharge lamp operating circuit
- Patent number 4,816,720
- Issue date Mar 28, 1989
- Hitachi, Ltd.
- Ikuya Nomoto
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Compact fluorescent lamp with a screw base
- Patent number 4,739,222
- Issue date Apr 19, 1988
- Hitachi, Ltd.
- Ikuya Nomoto
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Device for turning on light and illumination apparatus
- Publication number 20030127997
- Publication date Jul 10, 2003
- Hiroyuki Shoji
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Inverter type illumination lighting apparatus
- Publication number 20020125834
- Publication date Sep 12, 2002
- Hiroyuki Shoji
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Kenji Kawabata

Person

Patents Grantslast 30 patents

Device for turning on light and illumination apparatus

Inverter type illumination lighting apparatus

Device for turning on light and illumination apparatus

Discharge tube lighting apparatus

Power supply apparatus

Discharge lamp lighting device

Information processing apparatus including a control circuit for co...

Discharge lamp operating circuit

Protected discharge lamp lighting system

Discharge lamp operating circuit

Compact fluorescent lamp with a screw base

Patents Applicationslast 30 patents

Device for turning on light and illumination apparatus

Inverter type illumination lighting apparatus