YK

Yasuhito Kumabuchi

Sumitomo Electric Industries: 15 patents #1,596 of 21,551Top 8%
Overall (All Time): #326,515 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
7368766 Semiconductor light emitting element and method for fabricating the same Satoshi Kamiyama, Masakatsu Suzuki, Takeshi Uenoyama, Kiyoshi Ohnaka, Akira Takamori +5 more 2008-05-06
6861672 Semiconductor light emitting element and method for fabricating the same Satoshi Kamiyama, Masakatsu Suzuki, Takeshi Uenoyama, Kiyoshi Ohnaka, Akira Takamori +5 more 2005-03-01
6674100 SiGeC-based CMOSFET with separate heterojunctions Minoru Kubo, Katsuya Nozawa, Masakatsu Suzuki, Takeshi Uenoyama 2004-01-06
6399970 FET having a Si/SiGeC heterojunction channel Minoru Kubo, Katsuya Nozawa, Masakatsu Suzuki, Takeshi Uenoyama 2002-06-04
6326638 Semiconductor light emitting element and method for fabricating the same Satoshi Kamiyama, Masakatsu Suzuki, Takeshi Uenoyama, Kiyoshi Ohnaka, Akira Takamori +5 more 2001-12-04
6274889 Method for forming ohmic electrode, and semiconductor device Yorito Ota, Hiroyuki Masato, Makoto Kitabatake 2001-08-14
6266354 Semiconductor laser device with ridge structure Toyoji Chino, Isao Kidoguchi, Hideto Adachi 2001-07-24
6190975 Method of forming HCMOS devices with a silicon-germanium-carbon compound semiconductor layer Minoru Kubo, Katsuya Nozawa, Masakatsu Suzuki, Takeshi Uenoyama 2001-02-20
6151348 Semiconductor laser Hideto Adachi, Isao Kidoguchi 2000-11-21
6127201 Method for etching a compound semiconductor, a semiconductor laser device and method for producing the same Toyoji Chino, Isao Kidoguchi, Hideto Adachi 2000-10-03
6118800 Semiconductor laser and cleaving method Isao Kidoguchi, Hideto Adachi 2000-09-12
6110813 Method for forming an ohmic electrode Yorito Ota, Hiroyuki Masato, Makoto Kitabatake 2000-08-29
5968845 Method for etching a compound semiconductor, a semi-conductor laser device and method for producing the same Toyoji Chino, Isao Kidoguchi, Hideto Adachi 1999-10-19
5787104 Semiconductor light emitting element and method for fabricating the same Satoshi Kamiyama, Masakatsu Suzuki, Takeshi Uenoyama, Kiyoshi Ohnaka, Akira Takamori +5 more 1998-07-28
5665978 Nonlinear element and bistable memory device Takeshi Uenoyama 1997-09-09