HN

Hideyuki Nakanishi

Sumitomo Electric Industries: 5 patents #127 of 4,178Top 4%
Overall (2004): #9,172 of 270,089Top 4%
5
Patents 2004

Issued Patents 2004

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6747939 Semiconductor laser device and optical pickup device using the same Yukio Saitoh, Shoichi Takasuka, Naoki Nakanishi 2004-06-08
6735024 Optical pickup with improved optical properties Shoichi Takasuka, Shinichi Ijima, Akio Yoshikawa, Kazutoshi Onozawa, Kazuhiko Yamanaka +1 more 2004-05-11
6728034 Diffractive optical element that polarizes light and an optical pickup using the same Shoichi Takasuka, Shinichi Ijima, Akio Yoshikawa, Teruhiro Shiono 2004-04-27
6728035 Optical device with diffraction grating having plural grating regions Shoichi Takasuka, Shinichi Ijima, Akio Yoshikawa, Naoki Nakanishi 2004-04-27
6680491 Optical electronic apparatus and method for producing the same Toru Tsuruta, Ryuma Hirano 2004-01-20