Akio Katoh

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Nishio, JP

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Patents Grantslast 30 patents

Information Patent Grant
Long life spark plug having minimum noble metal amount
- Patent number 5,990,602
- Issue date Nov 23, 1999
- Nippondenso Co., Ltd.
- Akio Katoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug having arc-shaped precious metal chip and method of prod...
- Patent number 5,563,468
- Issue date Oct 8, 1996
- Nippondenso Co., Ltd.
- Nobuo Abe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug having horizontal discharge gap
- Patent number 5,502,351
- Issue date Mar 26, 1996
- Nippondenso Co., Ltd.
- Akio Katoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug having horizontal discharge
- Patent number 5,502,352
- Issue date Mar 26, 1996
- Nippondenso Co., Ltd.
- Akio Katoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug for internal-combustion engine and manufacture method of...
- Patent number 5,465,022
- Issue date Nov 7, 1995
- Nippondenso Co., Ltd.
- Akio Katoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Long life spark plug having consumable discharge member
- Patent number 5,406,166
- Issue date Apr 11, 1995
- Nippondenso Co., Ltd.
- Nobuo Abe
- H01 - BASIC ELECTRIC ELEMENTS