NI

Noboru Ishida

Ngk Spark Plug Co.: 3 patents #8 of 96Top 9%
Overall (1989): #8,139 of 140,708Top 6%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4872431 Internal combustion engine with ceramics valves Shigeaki Akao, Mitsuyoshi Kawamura 1989-10-10
4841922 Method of making a rocker arm Masato Taniguchi, Mitsuyoshi Kawamura, Masaya Ito 1989-06-27
4796576 Adjustment mechanism for ceramic rocker arm Tooru Matsuura, Mitsuyoshi Kawamura 1989-01-10