AK

Akio Katoh

NC Nippondenso Co.: 7 patents #296 of 3,479Top 9%
📍 Nishio, JP: #76 of 363 inventorsTop 25%
Overall (All Time): #763,681 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
5990602 Long life spark plug having minimum noble metal amount Keiji Kanao 1999-11-23
5563468 Spark plug having arc-shaped precious metal chip and method of producing the same Nobuo Abe 1996-10-08
5502994 Method for producing a metal tip Kazuo Hamada 1996-04-02
5502352 Spark plug having horizontal discharge Kozo Takamura 1996-03-26
5502351 Spark plug having horizontal discharge gap Nobuo Abe 1996-03-26
5465022 Spark plug for internal-combustion engine and manufacture method of the same Nobuo Abe, Takeshi Hanai, Kenji Horibe 1995-11-07
5406166 Long life spark plug having consumable discharge member Nobuo Abe, Kozo Takamura 1995-04-11