TO

Toshiyuki Okumura

Sharp Kabushiki Kaisha: 31 patents #429 of 10,731Top 4%
NE Nec: 8 patents #1,742 of 14,502Top 15%
DE Denso: 1 patents #6,940 of 11,792Top 60%
SC Shibaura Electronics Co.: 1 patents #16 of 41Top 40%
TO Tokin: 1 patents #101 of 278Top 40%
NE Nec Home Electronics: 1 patents #33 of 106Top 35%
KS Kobe Steel: 1 patents #857 of 2,031Top 45%
Overall (All Time): #70,609 of 4,157,543Top 2%
43
Patents All Time

Issued Patents All Time

Showing 1–25 of 43 patents

Patent #TitleCo-InventorsDate
11105688 Attaching a thermistor on a case Tatsuyuki Suzuki 2021-08-31
9099586 Nitride semiconductor light-emitting element and method for producing nitride semiconductor light-emitting element Masaya Ueda, Yoshihiro Ueta, Yuichi Sano 2015-08-04
7864412 Semiconductor optical amplifier device amplifying external light signal and driving apparatus therefor Kyoko Matsuda 2011-01-04
7515624 Semiconductor laser, semiconductor laser driver and method of driving semiconductor laser reducing feedback-induced noise by modulated optical output Kyoko Matsuda 2009-04-07
7356218 Variable demultiplexer Yoshimichi Kato 2008-04-08
7274010 Semiconductor optical amplifier device amplifying an externally applied light signal, semiconductor optical amplification driving device and semiconductor light receiving apparatus Kyoko Matsuda 2007-09-25
7251390 Planar waveguide device Yasuo Fukai 2007-07-31
7199398 Nitride semiconductor light emitting device having electrode electrically separated into at least two regions Tomoki Ono, Shigetoshi Ito, Hirokazu Mouri, Kyoko Matsuda, Toshiyuki Kawakami +2 more 2007-04-03
7183569 Gallium nitride semiconductor light emitting device having multi-quantum-well structure active layer, and semiconductor laser light source device 2007-02-27
7088902 Photonic crystal and producing method thereof Yoshimichi Katoh 2006-08-08
7026698 Functional device, method of manufacturing therefor and driver circuit 2006-04-11
7015565 Gallium nitride type semiconductor laser device 2006-03-21
6956882 Gallium nitride semiconductor light emitting device having multi-quantum-well structure active layer, and semiconductor laser light source device 2005-10-18
6842470 Nitride-type compound semiconductor laser device and laser apparatus incorporating the same Susumu Omi, Kazuhiko Inoguchi 2005-01-11
6787384 Functional device, method of manufacturing therefor and driver circuit 2004-09-07
6781208 Functional device, method of manufacturing therefor and driver circuit 2004-08-24
6764870 Method for manufacturing a gallium nitride type semiconductor laser device 2004-07-20
6714719 Video recording system using magnetic disk drive 2004-03-30
6614824 Nitride semiconductor laser device and optical device using the same Yuhzoh Tsuda, Shigetoshi Ito 2003-09-02
6585800 Method for making molten metal Hiroshi Sugitatsu, Hiroshi Uemura 2003-07-01
6556603 Nitride-contained semiconductor laser element and optical information reproducing device Yukio Yamasaki 2003-04-29
6549552 Nitride-type compound semiconductor laser device and laser apparatus incorporating the same Susumu Omi, Kazuhiko Inoguchi 2003-04-15
6456640 Gallium nitride type semiconductor laser device 2002-09-24
6377597 Gallium nitride semiconductor light emitting element with active layer having multiplex quantum well structure and semiconductor laser light source device 2002-04-23
6370176 Gallium nitride group semiconductor laser device and optical pickup apparatus 2002-04-09