YT

Yatsuka Takata

AW Aichi Steel Works: 3 patents #12 of 107Top 15%
KC Koyo Seiko Co.: 2 patents #228 of 749Top 35%
NC Nippondenso Co.: 1 patents #1,765 of 3,479Top 55%
Overall (All Time): #1,650,558 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5403545 Bearing steel Akira Muroga, Yoshihiro Wakikado, Takao Ooki, Masao Goto, Hazime Tazumi +5 more 1995-04-04
4702767 Method of purifying a bearing steel Tadamasa Yamada, Eiki Kikuchi 1987-10-27
4642219 Bearing steel and method of manufacturing the same Tadamasa Yamada, Eiki Kikuchi 1987-02-10