DH

Daiji Hiraoka

KC Koyo Seiko Co.: 3 patents #150 of 749Top 25%
Overall (All Time): #1,612,663 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6637107 Method of manufacturing disk for variator Shinji Yasuhara, Yoshihiro Ono, Yasuhiko Hasuda, Yasuharu Misada 2003-10-28
6485179 Dynamic pressure bearing Takeshi Takahashi, Yasuo Takamura 2002-11-26
6269146 Rotating anode x-ray tube capable of efficiently discharging intense heat Masayoshi Ohnishi, Kazunori Hayashida 2001-07-31