TH

Tohru Hotta

SC Sanyo Electric Co.: 27 patents #92 of 6,347Top 2%
SC Sanyo Optec Design Co.: 24 patents #2 of 42Top 5%
SS Sankyo Seiki Seisakusho: 3 patents #42 of 287Top 15%
KT Kabushiki Kaisha Toshiba: 2 patents #9,982 of 21,451Top 50%
SC Sankyo Seiki Mfg. Co.: 1 patents #107 of 244Top 45%
AT Agency Of Industrial Science And Technology: 1 patents #568 of 1,778Top 35%
TI Toray Industries: 1 patents #2,000 of 3,690Top 55%
📍 Moriyama, JP: #30 of 2,577 inventorsTop 2%
Overall (All Time): #108,643 of 4,157,543Top 3%
33
Patents All Time

Issued Patents All Time

Showing 26–33 of 33 patents

Patent #TitleCo-InventorsDate
7672202 Optical pickup apparatus Yoshio Hayashi, Noriyoshi Ooyama, Kiyotaka Eizumi 2010-03-02
7554751 Lens and optical pickup device Ryouichi Kawasaki 2009-06-30
6798819 Optical pickup apparatus and method of manufacturing the same Ikuo Kasuga 2004-09-28
6584061 Optical pick-up device Katsushige Yanagisawa, Ikuo Kasuga, Satoru Kishita 2003-06-24
6522619 Optical pick-up device having a plurality of light sources with different calorific values and method of manufacturing the same Katsushige Yanagisawa, Ikuo Kasuga, Toshihiko Okina, Satoru Kishita, Hidenori Sai 2003-02-18
6369963 Optical pickup apparatus Ikuo Kasuga, Katsushige Yanagisawa 2002-04-09
5049419 Method for manufacturing a precursor wire for a carbon-fiber-reinforced metal composite material Tetsuyuki Kyono, Tohru Hanano 1991-09-17
4929513 Preform wire for a carbon fiber reinforced aluminum composite material and a method for manufacturing the same Tetsuyuki Kyono, Seiichiro Ohnishi, Tohru Hanano 1990-05-29