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Patents Grants
last 30 patents
Information
Patent Grant
Ignition coil for use in engine and engine having plastic cylinder...
Patent number
7,487,767
Issue date
Feb 10, 2009
Hitachi, Ltd.
Junichi Shimada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Ignition coil for use in engine and engine having plastic cylinder...
Patent number
7,013,883
Issue date
Mar 21, 2006
Hitachi, Ltd.
Junichi Shimada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Gas flow meter
Patent number
6,968,283
Issue date
Nov 22, 2005
Hitachi, Ltd.
Takafumi Matsumura
G01 - MEASURING TESTING
Information
Patent Grant
Gas flow meter
Patent number
6,810,345
Issue date
Oct 26, 2004
Hitachi, Ltd.
Takafumi Matsumura
G01 - MEASURING TESTING
Information
Patent Grant
Internal combustion engine ignition coil
Patent number
6,763,816
Issue date
Jul 20, 2004
Hitachi, Ltd.
Kenji Nakabayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Ignition apparatus for internal combustion engine and one-chip semi...
Patent number
6,684,867
Issue date
Feb 3, 2004
Hitachi, Ltd.
Takashi Ito
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Ignition system for internal combustion engine
Patent number
6,595,194
Issue date
Jul 22, 2003
Hitachi, Ltd.
Takashi Ito
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Ignition apparatus for internal combustion engine with improved ele...
Patent number
6,590,774
Issue date
Jul 8, 2003
Hitachi, Ltd.
Hidetoshi Oishi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Ignition coil for use in engine and engine having plastic cylinder...
Patent number
6,571,784
Issue date
Jun 3, 2003
Hitachi, Ltd.
Junichi Shimada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Ignition device for an internal combustion engine
Patent number
6,539,929
Issue date
Apr 1, 2003
Hitachi, Ltd.
Takashi Ito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Resin sealed electronic device
Patent number
6,484,708
Issue date
Nov 26, 2002
Hitachi, Ltd.
Satoshi Hirakawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Igniter for internal combustion engine
Patent number
6,378,514
Issue date
Apr 30, 2002
Hitachi, Ltd.
Toshiaki Kaminaga
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Ignition coil for internal combustion engine
Patent number
6,343,595
Issue date
Feb 5, 2002
Hitachi, Ltd.
Kenji Nakabayashi
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Ignition coil unit for engine and engine provided with plastic head...
Patent number
6,332,458
Issue date
Dec 25, 2001
Hitachi, Ltd.
Junichi Shimada
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Resin sealed electronic device and method of fabricating the same a...
Patent number
6,321,734
Issue date
Nov 27, 2001
Hitachi, Ltd.
Toshiaki Kaminaga
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Ignition apparatus for use in internal combustion engine
Patent number
6,308,696
Issue date
Oct 30, 2001
Hitachi, Ltd.
Eiichiro Kondo
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Igniter for internal combustion engine having outer packing case eq...
Patent number
6,055,969
Issue date
May 2, 2000
Hitachi, Ltd.
Hidetoshi Oishi
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Ignition apparatus for an internal combustion engine
Patent number
5,967,128
Issue date
Oct 19, 1999
Hitachi, Ltd. & Hitachi Car Engineering Co.
Hiroshi Onuki
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Ignition apparatus for use in internal combustion engine
Patent number
5,954,036
Issue date
Sep 21, 1999
Hitachi, Ltd
Eiichiro Kondo
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Igniter for internal combustion engine having outer packing case eq...
Patent number
5,915,367
Issue date
Jun 29, 1999
Hitachi, Ltd.
Hidetoshi Oishi
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Ignition device for an internal combustion engine
Patent number
5,775,310
Issue date
Jul 7, 1998
Hitachi, Ltd.
Takahashi Ito
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Switching state detecting apparatus, control unit and transmission...
Patent number
5,724,601
Issue date
Mar 3, 1998
Hitachi, Ltd.
Ryoichi Kobayashi
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Ignition system of internal combustion engine
Patent number
5,664,550
Issue date
Sep 9, 1997
Hitachi, Ltd.
Takashi Ito
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Ignition apparatus for an internal combustion engine
Patent number
5,632,259
Issue date
May 27, 1997
Hitachi, Ltd.
Eiichiro Konda
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Electronic device for offsetting adverse effects of a plurality of...
Patent number
5,606,487
Issue date
Feb 25, 1997
Hitachi, Ltd.
Akio Yasukawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electronic distributor ignition device for internal combustion engines
Patent number
5,581,131
Issue date
Dec 3, 1996
Hitachi, Ltd.
Noriyoshi Urushiwara
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Ignition device for internal-combustion engine
Patent number
5,558,074
Issue date
Sep 24, 1996
Hitachi, Ltd.
Katsuaki Fukatsu
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Electronic distributing type ignition device
Patent number
5,467,758
Issue date
Nov 21, 1995
Hitachi, Ltd.
Norio Moriyama
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Ignition system for internal combustion engine
Patent number
5,284,124
Issue date
Feb 8, 1994
Hitachi, Ltd.
Norio Moriyama
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Electronic distributor
Patent number
5,282,452
Issue date
Feb 1, 1994
Hitachi, Ltd.
Noriyoshi Urushiwara
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Patents Applications
last 30 patents
Information
Patent Application
Ignition coil for use in engine and engine having plastic cylinder...
Publication number
20060129890
Publication date
Jun 15, 2006
Hitachi, Ltd.
Junichi Shimada
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Gas flow meter
Publication number
20040210410
Publication date
Oct 21, 2004
Hitachi, Ltd
Takafumi Matsumura
G01 - MEASURING TESTING
Information
Patent Application
Ignition device of internal combustion engine
Publication number
20040069289
Publication date
Apr 15, 2004
Takashi Ito
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Ignition coil for use in engine and engine having plastic cylinder...
Publication number
20040069288
Publication date
Apr 15, 2004
Hitachi, Ltd.
Junichi Shimada
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Gas flow meter
Publication number
20030004666
Publication date
Jan 2, 2003
Takafumi Matsumura
G01 - MEASURING TESTING
Information
Patent Application
Resin sealed electronic device
Publication number
20020104519
Publication date
Aug 8, 2002
Hitachi, Ltd.
Satoshi Hirakawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Ignition coil for internal combustion engine
Publication number
20020046746
Publication date
Apr 25, 2002
Hitachi, Ltd.
Kenji Nakabayashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Ignition coil for use in engine and engine having plastic cylinder...
Publication number
20020026929
Publication date
Mar 7, 2002
Junichi Shimada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
IGNITION APPARATUS FOR INTERNAL COMBUSTION ENGINE WITH IMPROVED ELE...
Publication number
20020012230
Publication date
Jan 31, 2002
HIDETOSHI OISHI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Ignition apparatus for internal combustion engine and one-chip semi...
Publication number
20010037801
Publication date
Nov 8, 2001
Takashi Ito
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Ignition device for an internal combustion engine
Publication number
20010007252
Publication date
Jul 12, 2001
Hitachi, Ltd.
Takashi Ito
H01 - BASIC ELECTRIC ELEMENTS