RK

Ryuta Koizumi

SE Seiko Epson: 30 patents #505 of 7,774Top 7%
Overall (All Time): #123,645 of 4,157,543Top 3%
30
Patents All Time

Issued Patents All Time

Showing 1–25 of 30 patents

Patent #TitleCo-InventorsDate
11762271 Projector Junichi Wakabayashi, Junichi Suzuki, Masaya Masuda, Hidenori Kawata, Yoshitomo Kumai 2023-09-19
11703750 Illuminator and projector Mizuha Hiroki, Koya Shiratori, Shinichi Yotsuya, Tetsuo Shimizu, Shoichi Uchiyama +1 more 2023-07-18
11614680 Illuminator and projector 2023-03-28
11614679 Light source apparatus and projector Koya Shiratori 2023-03-28
11366377 Wavelength conversion element, illumination device, and projector Koya Shiratori, Mizuha Hiroki, Tetsuo Shimizu 2022-06-21
11336875 Wavelength conversion element, light source device, and projector Shinichi Yotsuya, Tetsuo Shimizu, Mizuha Hiroki 2022-05-17
10845684 Projector Yoshiyuki Yanagisawa 2020-11-24
10542241 Projector 2020-01-21
10379284 Light source device and projector Toshiaki Hashizume 2019-08-13
10261402 Light source device and projector Toshiaki Hashizume 2019-04-16
8405700 Exposure head and image forming apparatus with light emitting element emitting light forming first and second diagrams having angle Takeshi Sowa, Ken Ikuma 2013-03-26
8355185 Exposure head and image forming apparatus Takeshi Sowa, Ken Ikuma, Nozomu Inoue 2013-01-15
8300076 Line head and an image forming apparatus using such a line head Yujiro Nomura, Nozomu Inoue, Ken Ikuma 2012-10-30
8274741 Lens array, an exposure head and an image forming apparatus Yujiro Nomura, Takeshi Sowa 2012-09-25
8194106 Line head and image forming apparatus using the same Yujiro Nomura, Nozomu Inoue, Ken Ikuma 2012-06-05
8194112 Line head and image forming apparatus Takeshi Sowa, Yujiro Nomura 2012-06-05
8184140 Line head and image forming apparatus Takeshi Sowa, Yujiro Nomura 2012-05-22
8179413 Image forming device that detects a moving time of a latent image carrier Yujiro Nomura, Nozomu Inoue, Kiyoshi Tsujino 2012-05-15
8120635 Exposure head and an image forming apparatus Yujiro Nomura, Takeshi Sowa 2012-02-21
8089695 Line head and image forming apparatus using the same Takeshi Sowa, Yujiro Nomura 2012-01-03
8022975 Line head and image forming apparatus using the same Takeshi Sowa, Yujiro Nomura 2011-09-20
8004549 Line head and an image forming apparatus using the line head Yujiro Nomura, Nozomu Inoue, Ken Ikuma 2011-08-23
7952601 Lens array, exposure head, and image forming apparatus Yujiro Nomura, Takeshi Sowa, Ken Ikuma 2011-05-31
7916163 Exposure head, a method of controlling an exposure head and an image forming apparatus Nozomu Inoue, Yujiro Nomura 2011-03-29
7889222 Lens array for a line head, a line head and an image forming apparatus Yujiro Nomura, Takeshi Sowa 2011-02-15