RT

Ryoji Tsuda

TC Toshiba Materials Co.: 7 patents #34 of 197Top 20%
KT Kabushiki Kaisha Toshiba: 6 patents #4,898 of 21,451Top 25%
SC Seoul Semiconductor Co.: 3 patents #123 of 277Top 45%
Overall (All Time): #433,605 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
12245445 White light source including LED and phosphors Tatsunori Itoga, Naotoshi Matsuda, Yoshitaka Funayama 2025-03-04
12072069 Method for using white light source, and white light source Masahiko Yamakawa, Kumpei Kobayashi, Noriaki Yagi, Kiyoshi Inoue, Kyung Hee Ye 2024-08-27
11563155 White light source including LED and phosphors Tatsunori Itoga, Naotoshi Matsuda, Yoshitaka Funayama 2023-01-24
10957826 White light source including LED and phosphors Tatsunori Itoga, Naotoshi Matsuda, Yoshitaka Funayama 2021-03-23
10473274 White light source system Masahiko Yamakawa, Yasumasa Ooya, Tatsunori Itoga, Yasuhiro Shirakawa, Junji Taniguchi 2019-11-12
10368408 Light emitting device and LED light bulb Hiroyasu Kondo, Masahiko Yamakawa, Yasuhiro Shirakawa, Atsuji Nakagawa, Toshitaka Fujii +1 more 2019-07-30
10368409 Light emitting device and LED light bulb Hiroyasu Kondo, Masahiko Yamakawa, Yasuhiro Shirakawa, Atsuji Nakagawa, Toshitaka Fujii +1 more 2019-07-30
10274185 Lighting device Mitsuaki Kato, Hiroshi Ohno, Katsumi Hisano, Hiroyasu Kondo 2019-04-30
10107457 Lighting apparatus Hiroshi Ohno, Mitsuaki Kato, Hiromichi Hayashihara, Hiroyasu Kondo, Yasumasa Ooya 2018-10-23
D765275 Light-emitting diode lamp Hiroshi Ohno, Mitsuaki Kato, Katsumi Hisano, Yasuhiro Shirakawa, Hiroyasu Kondo 2016-08-30
6593985 Color shutter and color image display apparatus Kazuki Taira, Shigeki Uno, Tatsuo Saishu, Kohei Suzuki 2003-07-15