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Koichi Toyama
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Kariya, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Attachment structure for a sound generating apparatus
Patent number
8,223,987
Issue date
Jul 17, 2012
Fujitsu Ten Limited
Kiyosei Shibata
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Attachment structure for a sound generating apparatus
Patent number
8,199,926
Issue date
Jun 12, 2012
Fujitsu Ten Limited
Kiyosei Shibata
Information
Patent Grant
Discharge lamp ballast circuit having snubber circuit
Patent number
6,720,740
Issue date
Apr 13, 2004
Denso Corporation
Koichi Toyama
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Discharge lamp apparatus having directly coupled lamp and electroni...
Patent number
6,710,545
Issue date
Mar 23, 2004
Denso Corporation
Hironao Yamaguchi
F21 - LIGHTING
Information
Patent Grant
Discharge lamp driver circuit designed to minimize radiation or noise
Patent number
6,700,328
Issue date
Mar 2, 2004
Denso Corporation
Koichi Toyama
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Vehicle headlamp having removable lighting control unit
Patent number
6,672,747
Issue date
Jan 6, 2004
Denso Corporation
Hiranao Yamaguchi
B60 - VEHICLES IN GENERAL
Information
Patent Grant
AC power generating apparatus having electrolytic capacitor and cer...
Patent number
6,670,778
Issue date
Dec 30, 2003
Denso Corporation
Koichi Toyama
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Discharge lamp device for reducing noise radiation and surge pulse...
Patent number
6,642,668
Issue date
Nov 4, 2003
Denso Corporation
Koichi Toyama
F21 - LIGHTING
Information
Patent Grant
Discharge lamp lighting device
Patent number
6,291,945
Issue date
Sep 18, 2001
Nippondenso Co., Ltd.
Koichi Toyama
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method and apparatus for reduced discharge lamp driver test time
Patent number
5,910,712
Issue date
Jun 8, 1999
Denso Corporation
Koichi Toyama
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Device for accurately detecting end of usage lifetime of a discharg...
Patent number
5,880,563
Issue date
Mar 9, 1999
Denso Corporation
Koichi Toyama
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High voltage discharge bulb control
Patent number
5,751,121
Issue date
May 12, 1998
Denso Corporation
Koichi Toyama
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Control apparatus for a lighting system of a discharge lamp used in...
Patent number
5,706,185
Issue date
Jan 6, 1998
Nippondenso Co., Ltd.
Koichi Toyama
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Discharge lamp unit having separable high-voltage transformer safeg...
Patent number
5,600,208
Issue date
Feb 4, 1997
Nippondenso Co., Ltd.
Kouichi Katou
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Knock control system for internal combustion engine
Patent number
5,404,854
Issue date
Apr 11, 1995
Nippondenso Co., Ltd.
Koichi Kamabora
G01 - MEASURING TESTING
Information
Patent Grant
Ignition occurrence detecting device for use in an ignition apparatus
Patent number
5,216,369
Issue date
Jun 1, 1993
Nippondenso Co., Ltd.
Koichi Toyama
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Ignition system for internal combustion engine
Patent number
4,809,668
Issue date
Mar 7, 1989
Nippondenso Co., Ltd.
Koichi Toyama
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Current flowing time period control system for ignition coil of int...
Patent number
4,773,380
Issue date
Sep 27, 1988
Nippondenso Co., Ltd.
Ko Narita
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Ignition system for internal combustion engines
Patent number
4,741,319
Issue date
May 3, 1988
Nippondenso Co. Ltd.
Ko Narita
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Ignition system for internal combustion engines
Patent number
4,572,151
Issue date
Feb 25, 1986
Nippondenso Co., Ltd.
Koichi Toyama
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Contactless erroneous ignition prevention type ignition system for...
Patent number
4,475,520
Issue date
Oct 9, 1984
Nippondenso Co., Ltd.
Koichi Toyama
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Contactless ignition control system with a dwell time control circu...
Patent number
4,167,927
Issue date
Sep 18, 1979
Nippondenso Co., Ltd.
Youichi Mikami
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Patents Applications
last 30 patents
Information
Patent Application
Discharge lamp device
Publication number
20030052624
Publication date
Mar 20, 2003
Koichi Toyama
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Discharge lamp ballast circuit
Publication number
20030034744
Publication date
Feb 20, 2003
Koichi Toyama
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Vehicle headlamp having removable lighting control unit
Publication number
20030031022
Publication date
Feb 13, 2003
Hironao Yamaguchi
B60 - VEHICLES IN GENERAL
Information
Patent Application
AC power generating apparatus having electrolytic capacitor and cer...
Publication number
20030030385
Publication date
Feb 13, 2003
Koichi Toyama
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Discharge lamp apparatus having directly coupled lamp and electroni...
Publication number
20030006706
Publication date
Jan 9, 2003
Hironao Yamaguchi
F21 - LIGHTING