HH

Hitoshi Hatayama

Sumitomo Electric Industries: 18 patents #1,247 of 21,551Top 6%
SC Sumitomo Electric Optifrontier Co.: 1 patents #40 of 57Top 75%
Overall (All Time): #249,329 of 4,157,543Top 6%
18
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11965801 Measurement system Kazuya Masuda, Tomohiko Ueda, Kenichiro Otsuka, Tsuneari Ito, Tetsufumi Tsuzaki +1 more 2024-04-23
8546722 Laser processing apparatus and processing method employed therein Eiichiro Yamada, Akira Inoue, Koji Nakazato, Hiroshi Kohda, Takemi Hasegawa 2013-10-01
7829335 Method of differentiation induction to osteoblasts Akira Inoue, Hiroshi Suganuma, Kunio Awazu, Toshihiro Kushibiki 2010-11-09
7085446 Optical multi/demultiplexer 2006-08-01
7027215 Optical component, optical amplification module, and optical transmission system Motoki Kakui, Tatsuhiko Shitomi, Masayuki Shigematsu 2006-04-11
6952309 Optical amplifier and optical amplification method Tetsufumi Tsuzaki, Masayuki Nishimura, Masayuki Shigematsu, Eisuke Sasaoka 2005-10-04
6829407 Planar optical circuit and optical transmission system 2004-12-07
6819859 Planar lightwave circuit type variable optical attenuator Chisai Hirose 2004-11-16
6782168 Apparatus for and method of monitoring wavelength multiplexed signal light as well as optical transmission system using the same Chisai Hirose, Masayuki Nishimura 2004-08-24
6701090 Wavelength division multiplexing signal number monitoring apparatus and method Eisuke Sasaoka 2004-03-02
6643431 Optical device and control method thereof Chisai Hirose, Masayuki Nishimura, Makoto Katayama 2003-11-04
6633698 Optical filter Masayuki Nishimura 2003-10-14
6560381 Optical filter Masayuki Nishimura, Chisai Hirose 2003-05-06
6507680 Planar lightwave circuit module Masayuki Nishimura, Nobuhiro Akasaka 2003-01-14
6333807 Optical filter Eisuke Sasaoka 2001-12-25
6332055 Optical attenuator, plane waveguide type optical circuit having the same and optical attenuation system having the same Eisuke Sasaoka 2001-12-18
6269211 Optical plane waveguide Eisuke Sasaoka 2001-07-31
6169837 Dispersion-flattened optical fiber Takatoshi Kato, Eisuke Sasaoka, Masayuki Nishimura 2001-01-02