TS

Takamasa Sakamoto

AC Asia Optical Co.: 7 patents #32 of 366Top 9%
MC Minolta Co.: 5 patents #395 of 1,416Top 30%
OP Optek: 5 patents #1 of 4Top 25%
MI Minolta: 1 patents #729 of 1,109Top 70%
MI Mizuno: 1 patents #130 of 221Top 60%
SC Sintai Optical (Shenzhen) Co.: 1 patents #80 of 159Top 55%
Overall (All Time): #350,909 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
9348109 Optical device Chun-Hung Huang 2016-05-24
7911719 Zoom lens 2011-03-22
7301577 Digital camera with a collapsible lens barrel 2007-11-27
7131773 Lens barrels 2006-11-07
7116901 Zoom finder drive mechanisms 2006-10-03
7035019 Lens barrel extending and retracting mechanisms 2006-04-25
7019915 Lens barrels 2006-03-28
6695889 Pre-dyeing treatment process and dyeing process for textile products containing highly crosslinked polyacrylic fibers, pretreated and undyed textile product, and dyed textile product Tsutomu Shiotani, Takeshi Ogino 2004-02-24
6282382 Camera having compact layout Junichi Tanii 2001-08-28
6183142 Single lens reflex camera Junichi Tanii 2001-02-06
6169856 Camera Akio Kimba, Junichi Tanii 2001-01-02
5950035 Dual dial apparatus Akihiro Oki 1999-09-07
5875364 Field frame changeover mechanism for viewfinder Akihiro Baba 1999-02-23
5506647 Field frame changeover mechanism for viewfinder Akihiro Baba 1996-04-09