KT

Keiji Tanaka

Sumitomo Electric Industries: 71 patents #74 of 21,551Top 1%
SI Sanyo Chemical Industries: 10 patents #6 of 607Top 1%
Shell Oil Compny: 9 patents #321 of 4,423Top 8%
Canon: 6 patents #8,497 of 19,416Top 45%
Fujitsu Limited: 6 patents #5,180 of 24,456Top 25%
KD Kdd: 4 patents #10 of 96Top 15%
NT NTT: 3 patents #1,627 of 4,871Top 35%
TS Tokyo Metropolitan Institute Of Medical Science: 3 patents #15 of 122Top 15%
KU Kyushu University: 3 patents #30 of 186Top 20%
KS Kdd Submarine Cable Systems: 2 patents #12 of 42Top 30%
IC Idemitsu Kosan Co.: 2 patents #509 of 1,237Top 45%
PA Panasonic: 2 patents #9,678 of 21,108Top 50%
Sharp Kabushiki Kaisha: 2 patents #5,184 of 10,731Top 50%
KD Kddi: 2 patents #137 of 396Top 35%
NI Nissan Chemical Industries: 2 patents #451 of 1,150Top 40%
TC Taiho Kogyo Co.: 1 patents #179 of 332Top 55%
TB Takara Bio: 1 patents #118 of 224Top 55%
EB Ebara: 1 patents #1,014 of 1,611Top 65%
TO Toyota: 1 patents #15,335 of 26,838Top 60%
FC Fuji Electric Co.: 1 patents #1,354 of 2,643Top 55%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
HC Hitachi Air Conditioning Systems Co.: 1 patents #4 of 23Top 20%
HA Hitachi Appliances: 1 patents #56 of 109Top 55%
KS Kddi Submarine Cable Systems: 1 patents #11 of 27Top 45%
KC Kyowa Hakko Kogyo Co.: 1 patents #549 of 943Top 60%
KU Kyushu University, National University: 1 patents #221 of 767Top 30%
OC Otsuka Pharmaceutical Co.: 1 patents #681 of 1,273Top 55%
SC Sanyo Electric Co.: 1 patents #3,644 of 6,347Top 60%
SK Showa Shell Sekiyu K.K.: 1 patents #27 of 82Top 35%
SL Sumitomo Pharmaceuticals Company Limited: 1 patents #135 of 327Top 45%
SI Sumitomo Rubber Industries: 1 patents #1,096 of 1,637Top 70%
SC Sun-S Co.: 1 patents #2 of 13Top 20%
SM Suzuki Motor: 1 patents #523 of 1,209Top 45%
Overall (All Time): #7,227 of 4,157,543Top 1%
139
Patents All Time

Issued Patents All Time

Showing 25 most recent of 139 patents

Patent #TitleCo-InventorsDate
12411364 Optical module and manufacturing method of optical module for optical communication Hiroshi Uemura, Taichi Misawa 2025-09-09
12316281 Reception circuit for optical communication Yoshiyuki Sugimoto 2025-05-27
12309917 Optical module assembly, optical module, package for optical module and flexible printed board Taichi Misawa 2025-05-20
12298332 Output circuit with peak voltage detection Hiroshi Uemura 2025-05-13
12273991 Optical module assembly, optical module, package for optical module and flexible printed board Taichi Misawa 2025-04-08
12210231 Optical module and manufacturing method of optical module for optical communication Hiroshi Uemura, Taichi Misawa 2025-01-28
12119792 Variable gain amplifier circuit and semiconductor integrated circuit Hiroshi Uemura 2024-10-15
12068788 Receiver circuit for optical communication Seiji Kumagai, Yoshiyuki Sugimoto 2024-08-20
11990747 Electrostatic protection circuit and semiconductor integrated circuit Hiroshi Uemura 2024-05-21
11869399 Driving circuit and semiconductor integrated circuit for use in an optical communication device Hiroshi Uemura 2024-01-09
11799288 Electrostatic protection circuit and semiconductor integrated circuit Hiroshi Uemura 2023-10-24
11744008 Printed board and printed board assembly Taichi Misawa 2023-08-29
11601203 Transimpedance amplifier for receiving burst optical signal 2023-03-07
11595010 Optical receiver and transimpedance amplifier circuit Naoki Itabashi 2023-02-28
11588476 Amplitude modulation circuit and semiconductor integrated circuit for optical communication system Hiroshi Uemura 2023-02-21
11486760 Receiving circuit and optical receiving circuit Seiji Kumagai, Yoshiyuki Sugimoto 2022-11-01
11437962 Differential amplifier circuit having variable gain Naoki Itabashi 2022-09-06
11411542 Transimpedance amplifier circuit 2022-08-09
11398866 Optical semiconductor device, optical transmission module, and optical transceiver Taichi Misawa 2022-07-26
11394352 Transimpedance amplifier circuit Yoshiyuki Sugimoto, Seiji Kumagai 2022-07-19
11362629 Transimpedance amplifier circuit Naoki Itabashi 2022-06-14
11349444 Transimpedance amplifier circuit 2022-05-31
11228293 Differential amplifier circuit having stable gain Yoshiyuki Sugimoto 2022-01-18
11220650 Grease composition Kazuya Watanabe, Hiroki YANO 2022-01-11
11199840 Mover control system, mover system, mover control method, and non-transitory storage medium Hideo Morita, Takashi Ooyama, Koji Arimura, Yutaka Mori 2021-12-14