KA

Koichi Akiyama

SE Seiko Epson: 139 patents #12 of 7,774Top 1%
Mitsubishi Electric: 28 patents #534 of 25,717Top 3%
KC Kowa Company: 12 patents #30 of 562Top 6%
TI Takeda Chemical Industries: 8 patents #152 of 1,420Top 15%
MC Mitsubishi Chemical: 4 patents #463 of 3,022Top 20%
Nissan Motor Co.: 3 patents #2,303 of 8,689Top 30%
TO Toyota: 3 patents #8,352 of 26,838Top 35%
HC Hirose Electric Co.: 3 patents #115 of 407Top 30%
ME Mitsubishi Electric: 2 patents #243 of 959Top 30%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
NE Nec: 2 patents #5,510 of 14,502Top 40%
TK Toshiba Tec Kabushiki Kaisha: 2 patents #886 of 1,664Top 55%
FI Fujifilm Business Innovation: 1 patents #3,579 of 5,238Top 70%
Honda Motor Co.: 1 patents #12,035 of 21,052Top 60%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
MC Mitsui Takeda Chemicals: 1 patents #15 of 41Top 40%
RC Ricoh Imaging Company: 1 patents #35 of 67Top 55%
AA Autoliv Development Ab: 1 patents #518 of 1,363Top 40%
Overall (All Time): #3,135 of 4,157,543Top 1%
206
Patents All Time

Issued Patents All Time

Showing 51–75 of 206 patents

Patent #TitleCo-InventorsDate
11190739 Illuminator and projector 2021-11-30
11175520 Optical semiconductor device and method for manufacturing the same Yuichiro Horiguchi, Satoshi Nishikawa, Keigo Fukunaga, Yohei HOKAMA, Yosuke Suzuki 2021-11-16
11126076 Illumination optical apparatus and projector 2021-09-21
11119394 Light source device, illumination optical device, and projector 2021-09-14
10996551 Light source device, illumination optical device, and projector 2021-05-04
10996400 Optical waveguide interferometer Keisuke Kojima, Bingnan Wang, Toshiaki Koike-Akino, Eiji Yagyu, Satoshi Nishikawa +1 more 2021-05-04
10985532 Semiconductor optical waveguide and optical integrated element Yohei HOKAMA 2021-04-20
10983272 Multi-mode interference multiplexer/demultiplexer and optical element using the same Masakazu Takabayashi, Satoshi Nishikawa 2021-04-20
10976654 Illuminator and projector Wataru YASUMATSU 2021-04-13
10976653 Light source device and projector 2021-04-13
10928718 Projector 2021-02-23
10915014 Illumination optical device and projector 2021-02-09
10904498 Light source apparatus, projector, and light source module 2021-01-26
10877364 Illuminator and projector 2020-12-29
10866497 Wavelength conversion device, light source device, and projector 2020-12-15
10845745 Paper feeding device 2020-11-24
10838282 Optical ring circuit with electrical filter Keisuke Kojima, Min Teng, Toshiaki Koike-Akino, Chungwei Lin, Kieran Parsons +1 more 2020-11-17
10831085 Wavelength conversion element, illuminator, and projector 2020-11-10
10805009 Optical modulation apparatus, and timing adjustment method for optical modulation apparatus Shusaku Hayashi, Kentaro ENOKI 2020-10-13
10768517 Light source device and projector Akihiro Kashiwagi, Chigusa Takagi 2020-09-08
10725365 Illumination device and projector 2020-07-28
10652509 Illuminator and projector 2020-05-12
10649324 Illumination device and projector 2020-05-12
10649321 Light source device and projector 2020-05-12
10634983 Light source apparatus and projector 2020-04-28