HI

Hiroyoshi Ishikawa

Fujitsu Limited: 80 patents #78 of 24,456Top 1%
KY Kyosho: 1 patents #5 of 11Top 50%
Overall (All Time): #21,549 of 4,157,543Top 1%
82
Patents All Time

Issued Patents All Time

Showing 1–25 of 82 patents

Patent #TitleCo-InventorsDate
12334964 Wireless communication apparatus and distortion compensation method Tomoya Ota 2025-06-17
11563464 Signal processing device and inter-beam interference suppression method Tomoya Ota, Toru Maniwa 2023-01-24
11424774 Wireless communication apparatus and coefficient updating method Tomoya Ota, Alexander Nikolaevich Lozhkin, Toru Maniwa 2022-08-23
10904060 Peak suppression circuit, peak suppression method, and transmitter Shinichiro Kobayashi 2021-01-26
10659124 Multiantenna communication device and coefficient update method Takenori Ohshima, Yoji Ohashi, Atsushi Honda, Toru Maniwa, Alexander Nikolaevich Lozhkin +3 more 2020-05-19
10505570 Distortion compensating device and distortion compensation method Alexander Nikolaevich Lozhkin 2019-12-10
D867333 Speaker 2019-11-19
9825658 Distortion compensation apparatus and distortion compensation method Yuichi Utsunomiya, Daisuke Ogawa, Kazuo Nagatani 2017-11-21
9819372 Radio communication device and burst distortion correcting method Yuichi Utsunomiya, Daisuke Ogawa, Kazuo Nagatani 2017-11-14
9819370 Distortion compensation device and distortion compensation method Tomoya Ota, Kazuo Nagatani 2017-11-14
9813273 Peak suppression device Toshio Kawasaki, Hikaru Ishikawa, Kazuo Nagatani 2017-11-07
9768891 Distortion compensation device and distortion compensation method Tomoya Ota, Kazuo Nagatani 2017-09-19
9755877 Peak suppression device and peak suppression method Hikaru Ishikawa, Kazuo Nagatani, Takuro NISHIKAWA, Ryo Koizumi, Takeshi Sugiyama +1 more 2017-09-05
9548703 Distortion compensation apparatus, transmission apparatus, and distortion compensation method Satoshi Matsubara 2017-01-17
9515861 Peak suppression apparatus Tomoya Ota, Kazuo Nagatani 2016-12-06
9294047 Power amplifier apparatus, transmitter apparatus, and method of controlling the power amplifier apparatus Toshio Kawasaki, Kazuo Nagatani, Yuichi Utsunomiya, Alexander Nikolaevich Lozhkin, Hajime Hamada 2016-03-22
9276799 Wireless transmission apparatus and distortion compensation method Yuichi Utsunomiya, Kazuo Nagatani 2016-03-01
9270231 Distortion compensation apparatus, wireless transmission apparatus, and distortion compensation method Yuichi Utsunomiya, Kazuo Nagatani 2016-02-23
9263994 Amplifying device, distortion compensating device, and amplifying method Nobukazu Fudaba, Yuichi Utsunomiya, Toshio Kawasaki, Kazuo Nagatani 2016-02-16
9236893 Distortion compensation device and distortion compensation method Kazuo Nagatani 2016-01-12
9225295 Distortion compensation apparatus and distortion compensation method Satoshi Matsubara, Hideharu Shako, Kazuo Nagatani 2015-12-29
9190964 Distortion compensation device and distortion compensation method Yuichi Utsunomiya, Toshio Kawasaki, Alexander Nikolaevich Lozhkin, Kazuo Nagatani 2015-11-17
9100263 Distortion compensation apparatus and distortion compensation method Yuichi Utsunomiya, Nobukazu Fudaba, Kazuo Nagatani 2015-08-04
8933752 Power amplifier apparatus, distortion compensation coefficient updating method, and transmission apparatus Kazuo Nagatani, Yuichi Utsunomiya, Nobukazu Fudaba, Hajime Hamada 2015-01-13
8787487 Distortion compensation device and distortion compensating method Kazuo Nagatani, Nobukazu Fudaba, Yuichi Utsunomiya 2014-07-22