MT

Masaki Tohyama

KT Kabushiki Kaisha Toshiba: 16 patents #1,863 of 21,451Top 9%
CC Citizen Electronics Co.: 1 patents #144 of 252Top 60%
Overall (All Time): #276,568 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
9431793 Semiconductor laser device Nobuo Suzuki 2016-08-30
9093588 Semiconductor light emitting device with an aluminum containing layer formed thereon Jongil Hwang, Shinji Saito, Maki Sugai, Rei Hashimoto, Yasushi Hattori +1 more 2015-07-28
8729575 Semiconductor light emitting device and manufacturing method of the same Jongil Hwang, Hung Hung, Yasushi Hattori, Rei Hashimoto, Shinji Saito +1 more 2014-05-20
8649408 Semiconductor laser device Rei Hashimoto, Maki Sugai, Jongil Hwang, Yasushi Hattori, Shinji Saito +1 more 2014-02-11
8457167 Semiconductor laser device and method of manufacturing the same Maki Sugai, Shinji Saito, Rei Hashimoto, Yasushi Hattori, Jongil Hwang +1 more 2013-06-04
8432948 Semiconductor laser device Makoto Okada, Osamu Horiuchi 2013-04-30
8348468 Light emitting device Yasushi Hattori, Shinji Saito, Shinya Nunoue 2013-01-08
7139450 Laser transmitter device Tattee Khayim, Tomoaki Yamaguchi, Hirokazu Nishimura 2006-11-21
6865204 Ridge waveguide type photo semiconductor device and method for fabricating same Takayuki Matsuyama 2005-03-08
6700251 Vibrating device for axially vibrating a movable member Takashi Kobayashi, Kenshi Aihara, Akira Nikaido, Kazumi Miyamoto, Naoki Miura 2004-03-02
6108481 Optical semiconductor device and its manufacturing method Masahisa Funemizu, Yuzo Hirayama 2000-08-22
5970081 Grating coupled surface emitting device Yuzo Hirayama, Masahisa Funemizu, Motoyasu Morinaga, Keiji Takaoka, Kazuhiro Inoue +1 more 1999-10-19
5901265 Optical semiconductor device and method of fabricating the same Yuzo Hirayama 1999-05-04
5889913 Optical semiconductor device and method of fabricating the same Yuzo Hirayama 1999-03-30
5642371 Optical transmission apparatus Nobuo Suzuki 1997-06-24
5604762 Semiconductor optical device Motoyasu Morinaga, Nobuo Suzuki 1997-02-18
5347526 Wavelength-tunable semiconductor laser Nobuo Suzuki, Masaaki Onomura 1994-09-13