KY

Keita Yamaguchi

NT NTT: 17 patents #177 of 4,871Top 4%
MC Mitsubishi Chemical: 5 patents #358 of 3,022Top 15%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
MA Maxell: 1 patents #286 of 437Top 70%
PC Paramount Bed Co.: 1 patents #52 of 95Top 55%
SO Softbank: 1 patents #59 of 194Top 35%
SC Sumitomo Bakelite Co.: 1 patents #403 of 790Top 55%
TC Tokai Carbon Co.: 1 patents #38 of 112Top 35%
Overall (All Time): #121,861 of 4,157,543Top 3%
30
Patents All Time

Issued Patents All Time

Showing 1–25 of 30 patents

Patent #TitleCo-InventorsDate
12414660 Information collection apparatus and apparatus attaching method Takeshi Yamamoto, Hirokazu Kobayashi, Junpei Kumagai, Kazutoshi Ohishi, Hiroshi Katayanagi +1 more 2025-09-16
12306438 Optical waveguide Takashi Go, Kenya Suzuki, Ai Yanagihara 2025-05-20
12107762 Optical and electronic integrated switch Osamu Moriwaki, Shunichi Soma, Kenya Suzuki, Seiki Kuwabara, Tetsuro Inui +3 more 2024-10-01
12092870 Optical waveguide Takashi Go, Kenya Suzuki, Ai Yanagihara 2024-09-17
12032231 Optical signal processing apparatus and manufacturing method thereof Ai Yanagihara, Kenya Suzuki, Takashi Go, Osamu Moriwaki 2024-07-09
12022246 Optical signal processing apparatus Kenya Suzuki, Takashi Go, Osamu Moriwaki, Ai Yanagihara 2024-06-25
12007665 Optical signal processing apparatus Kenya Suzuki, Takashi Go, Osamu Moriwaki, Ai Yanagihara 2024-06-11
11979694 Optical and electronic integrated switch Osamu Moriwaki, Shunichi Soma, Kenya Suzuki, Seiki Kuwabara, Tetsuro Inui +3 more 2024-05-07
11977315 Optical module Ai Yanagihara, Kenya Suzuki, Takashi Go, Yuko Kawajiri 2024-05-07
11930309 Optical and electronic integrated switch Osamu Moriwaki, Shunichi Soma, Kenya Suzuki, Seiki Kuwabara, Tetsuro Inui +3 more 2024-03-12
11881897 Optical and electronic integrated switch and optical network system Hideki Nishizawa, Seiki Kuwabara, Seiji Okamoto, Shuto Yamamoto, Tetsuro Inui +3 more 2024-01-23
11740491 Optical module and manufacturing method thereof Ai Yanagihara, Kenya Suzuki, Takashi Go 2023-08-29
11422372 Distance measurement device, head-mounted display device, mobile information terminal, image display device, surroundings monitoring system, and distance measurement method Toshiki Ishii 2022-08-23
11405702 Optical signal processing device and method for controlling same Kenya Suzuki, Takashi Go, Osamu Moriwaki, Ai Yanagihara 2022-08-02
11216371 Cache memory and method for controlling the same 2022-01-04
11194093 Optical switch array and multicast switch Kazunori Senoo, Kenya Suzuki, Takashi Go 2021-12-07
11112561 Variable wavelength filter Kenya Suzuki, Takashi Go, Osamu Moriwaki, Ai Yanagihara 2021-09-07
10965375 Optical node device Hirotaka Ono, Kazunori Senoo, Kenya Suzuki, Mitsunori Fukutoku, Shingo Kawai +1 more 2021-03-30
10951793 Imaging device, imaging method, and image processing device generating a complex sensor image Yusuke Nakamura, Kazuyuki Tajima 2021-03-16
10887504 Distance measurement device and distance measurement method Yusuke Nakamura 2021-01-05
10797817 Optical signal processing device Kazunori Seno, Kenya Suzuki, Mitsumasa Nakajima, Masashi Miyata, Takashi Goh +1 more 2020-10-06
9946710 Language conversion apparatus, language conversion method, and language conversion program 2018-04-17
9588300 Optical input/output device Mitsumasa Nakajima, Joji Yamaguchi, Yuzo Ishii, Koichi Hadama, Naru Nemoto +4 more 2017-03-07
9346928 Packing sheet Satoshi Nakano 2016-05-24
8974968 Composite graphite particle for nonaqueous secondary battery, negative electrode material containing the same, negative electrode and nonaqueous secondary battery Kengo Okanishi, Norikazu Yamamoto 2015-03-10