KH

Kiichi Hamamoto

NE Nec: 14 patents #843 of 14,502Top 6%
KU Kyushu University, National University: 5 patents #30 of 767Top 4%
DE Denso: 2 patents #4,986 of 11,792Top 45%
Overall (All Time): #217,731 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11955772 Semiconductor light emitting element Yuki Kamata, Koichi Oyama, Hiroyuki Tarumi, Haisong Jiang 2024-04-09
9563020 Inter-mode light switch 2017-02-07
8929418 Semiconductor laser 2015-01-06
8917959 Analyzing element and analyzing apparatus using same 2014-12-23
8774572 Bistable element 2014-07-08
8295663 Super-luminescent light emitting diode 2012-10-23
7466736 Semiconductor laser diode, semiconductor optical amplifier, and optical communication device Jan De Merlier 2008-12-16
7262435 Single-transverse-mode laser diode with multi-mode waveguide region and manufacturing method of the same 2007-08-28
6813068 Semiconductor optical amplifier and semiconductor laser 2004-11-02
6768758 Semiconductor laser, semiconductor optical amplifier, and production method thereof 2004-07-27
6661960 Semiconductor waveguide photodetector 2003-12-09
6445722 Single-transverse-mode laser diode with multi-mode waveguide region and manufacturing method of the same 2002-09-03
6205163 Single-transverse-mode 1.times.N multi-mode interferometer type semiconductor laser device 2001-03-20
6148132 Semiconductor optical amplifier 2000-11-14
6117753 Method of manufacturing compound semiconductor integrated circuit Takashi Matsumoto 2000-09-12
5841929 Light wavelength filtering circuit and manufacturing method thereof Keiro Komatsu, Masako Hayashi, Tatsuya Sasaki, Takeshi Takeuchi 1998-11-24
5796883 Optical integrated circuit and method for fabricating the same Tatsuya Sasaki, Takeshi Takeuchi, Masako Hayashi, Keiro Komatsu, Ikuo Mito +1 more 1998-08-18
5770466 Semiconductor optical integrated circuits and method for fabricating the same Tatsuya Sasaki, Mitsuhiro Kitamura, Shotaro Kitamura, Keiro Komatsu, Yasutaka Sakata 1998-06-23
5565693 Semiconductor optical integrated circuits Tatsuya Sasaki, Mitsuhiro Kitamura, Shotaro Kitamura, Keiro Komatsu, Yasutaka Sakata 1996-10-15
5521994 Semiconductor optical waveguide-integrated light-receiving device Takeshi Takeuchi, Kenko Taguchi, Keiro Komatsu, Masako Yamamoto 1996-05-28