HT

Hiroto Tsuyuki

SC Seikosha Co.: 4 patents #86 of 312Top 30%
SP Seiko Precision: 2 patents #55 of 173Top 35%
Overall (All Time): #886,174 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5883386 Light-receiving apparatus having a position detectable portion on a sealing frame and its manufacturing method Hironobu Amemiya, Tomoki Nakamura 1999-03-16
5602613 Lens driving device Kazuo Akimoto, Miyoshi Tanikawa 1997-02-11
5045873 Motor driven shutter Nobuo Shinozaki 1991-09-03
5028946 Shutter for a single lens reflex camera Nobuo Shinozaki, Yoichi Nakano, Seiichi Imano 1991-07-02
4974006 Camera lens driving device Nobuo Shinozaki 1990-11-27
4929977 Flash photography changeover device Tadashi Ishikawa, Shigeru Tagami, Kazuo Akimoto, Michio Kawai, Kanji Ito +3 more 1990-05-29