TY

Takahiro Yoshikawa

Ricoh Company: 25 patents #815 of 9,818Top 9%
Sharp Kabushiki Kaisha: 11 patents #1,520 of 10,731Top 15%
ND Nitto Denko: 9 patents #365 of 2,479Top 15%
SP Sakai Display Products: 6 patents #27 of 175Top 20%
KA Kao: 4 patents #816 of 3,221Top 30%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
TI Toray Industries: 1 patents #2,000 of 3,690Top 55%
HC Hitachi Chemical Company: 1 patents #1,071 of 1,946Top 60%
AC Aces Electronics Co.: 1 patents #20 of 32Top 65%
Overall (All Time): #38,490 of 4,157,543Top 1%
60
Patents All Time

Issued Patents All Time

Showing 1–25 of 60 patents

Patent #TitleCo-InventorsDate
12210181 Light guide member for lighting device and lighting device Shimpei MUKADEYAMA, Kozo Nakamura 2025-01-28
12124071 Backlight unit and image display device Daisuke Hattori, Ryota Morishima, Atsushi Kishi 2024-10-22
12105313 Lighting device Kozo Nakamura, Yufeng Weng 2024-10-01
12044880 Backlight unit and image display device Daisuke Hattori, Ryota Morishima, Atsushi Kishi 2024-07-23
11994709 Optical member, and backlight unit and image display device using said optical member Daisuke Hattori, Ryota Morishima, Atsushi Kishi 2024-05-28
11966075 Optical member and backlight unit using said optical member, and image display device Daisuke Hattori, Ryota Morishima, Atsushi Kishi 2024-04-23
11940120 Desktop illumination device Kozo Nakamura, Yufeng Weng 2024-03-26
11921311 Illumination device Daisuke Hattori, Ryota Morishima 2024-03-05
11402569 Optical sheet for light guide plate type liquid crystal display, backlight unit for light guide plate type liquid crystal display, and light guide plate type liquid crystal display Daisuke Hattori, Kozo Nakamura 2022-08-02
10907816 Connector, connector mounting board, illumination device, and display device Nobukazu Kato, I-chiao Tso 2021-02-02
10655030 Water-based ink Hirotaka Takeno, Yuki Wakabayashi, Kaname Mitsuyoshi 2020-05-19
10316207 Water-based ink Kaname Mitsuyoshi, Hirotaka Takeno, Takayuki Suzuki 2019-06-11
10302988 Display apparatus 2019-05-28
9952458 Display apparatus Kazuhiko Negoro 2018-04-24
9952381 Light source device and display apparatus 2018-04-24
9829736 Display device Takayuki Nakazawa, Kazuhiko Negoro, Mayumi Hori 2017-11-28
9564337 Polishing liquid and method for polishing substrate using the polishing liquid Munehiro Oota, Takaaki Tanaka, Toshio Takizawa, Shigeru Yoshikawa, Takaaki Matsumoto +1 more 2017-02-07
9557667 Method for producing resin particle dispersion, and method for producing toner for electrostatic charge image development use Shoichi Murata 2017-01-31
9488770 Light source unit and display apparatus Yuki Horiguchi, Takayuki Nakazawa, Kazuhiko Negoro, Mayumi Hori 2016-11-08
9411455 Display device with touch panel 2016-08-09
9176445 Fixing device and image forming apparatus incorporating same 2015-11-03
9128399 Toners for electrophotography Norihiro Fukuri, Osamu Yamashita, Hiroki Kubo, Shoichi Murata 2015-09-08
8870437 Lighting device, display device, and television receiver 2014-10-28
8870401 Lighting device, display device and television receiver 2014-10-28
8827482 Lighting device, display device and television receiver 2014-09-09