ST

Seiji Tsuruta

UJ Unisia Jecs: 12 patents #21 of 395Top 6%
HS Hitachi Automotive Systems: 7 patents #226 of 1,636Top 15%
AU Atsugi Unisia: 3 patents #20 of 117Top 20%
HI Hitachi: 3 patents #10,712 of 28,497Top 40%
HA Hitachi Unisia Automotive: 1 patents #26 of 62Top 45%
AC Atsugi Motor Parts Company: 1 patents #38 of 93Top 45%
HM Hyundai Motor: 1 patents #6,384 of 11,886Top 55%
Nissan Motor Co.: 1 patents #4,519 of 8,689Top 55%
Overall (All Time): #146,349 of 4,157,543Top 4%
27
Patents All Time

Issued Patents All Time

Showing 26–27 of 27 patents

Patent #TitleCo-InventorsDate
5058539 Valve timing adjusting system for internal combustion engine Masaharu Saito, Katsuhiko Uchida, Seiji Suga 1991-10-22
4945871 Hydraulic valve lifter for internal combustion engine — 1990-08-07