Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DI

Daichi Imamura — 699 Patents

Panasonic: 354 patents #7 of 21,108Top 1%
STSun Patent Trust: 267 patents #8 of 106Top 8%
G1Godo Kaisha Ip Bridge 1: 42 patents #4 of 54Top 8%
OTOptis Wireless Technology: 27 patents #2 of 120Top 2%
Apple: 5 patents #5,490 of 18,612Top 30%
Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
Harris: 1 patents #2,446 of 2,461Top 100%
Saitama, JP: #1 of 10,685 inventorsTop 1%
Overall (All Time): #173 of 4,157,543Top 1%
699 Patents All Time
Daichi Imamura has been granted 699 US patents while listed as an inventor at Panasonic. The first was granted in 2004 and the most recent in September 2025. Daichi Imamura ranks #173 of 4,157,543 US inventors in our database (top 0.00%). Patent records list Daichi Imamura in Saitama, JP.

Issued Patents All Time

Showing 1–25 of 699 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12432002 Communication apparatus and reference signal receiving method Takashi Iwai, Akihiko Nishio, Yoshihiko Ogawa, Masaru Fukuoka 2025-09-30
12418354 Radio communication device and response signal spreading method Seigo Nakao, Katsuhiko Hiramatsu 2025-09-16
12362851 Communication apparatus Seigo Nakao, Akihiko Nishio 2025-07-15
12349145 Radio terminal, radio base station, channel signal forming method and channel signal receiving method Seigo Nakao, Takahisa Aoyama 2025-07-01
12309807 Communication apparatus and communication method for receiving control information over a search space Yoshiko Saito, Ayako Horiuchi, Seigo Nakao, Akihiko Nishio, Alexander Golitschek Edler von Elbwart +1 more 2025-05-20
12278780 Terminal device, base station device, retransmission method, and resource allocation method Masayuki Hoshino, Akihiko Nishio 2025-04-15
12279236 Radio reception apparatus, radio transmission apparatus, and radio communication method Masayuki Hoshino, Akihiko Nishio, Seigo Nakao 2025-04-15
12278776 Method and communication apparatus for mapping reference signal in wireless communication system Hui Tong, Ming Xu, Masayuki Hoshino 2025-04-15
12267193 Integrated circuit Yoshihiko Ogawa, Seigo Nakao, Akihiko Nishio, Masayuki Hoshino, Katsuhiko Hiramatsu +4 more 2025-04-01
12256335 Wireless communication device and method for controlling transmission power Takashi Iwai, Akihiko Nishio, Yoshihiko Ogawa, Shinsuke Takaoka 2025-03-18
12238038 Reference signal reception and CQI computation method and wireless communication apparatus Akihiko Nishio, Seigo Nakao 2025-02-25
12232051 Radio communication apparatuses and radio communication method Takashi Iwai, Akihiko Nishio, Yoshihiko Ogawa, Atsushi Matsumoto 2025-02-18
12232116 Base station and related communication method Seigo Nakao, Akihiko Nishio, Ayako Horiuchi 2025-02-18
12224957 Communication apparatus and reference signal reception method Takashi Iwai, Sadaki Futagi, Tomohumi Takata, Yoshihiko Ogawa 2025-02-11
12219462 Terminal and communication method thereof Yoshihiko Ogawa, Seigo Nakao, Akihiko Nishio, Masayuki Hoshino, Atsushi Sumasu 2025-02-04
12185150 Communication apparatus and communication method for measuring a channel quality indicator (CQI) Yasuaki Yuda, Seigo Nakao, Ayako Horiuchi, Masayuki Hoshino, Atsushi Sumasu 2024-12-31
12185294 Integrated circuit, apparatus and method for communication using resource block groups Takashi Iwai, Sadaki Futagi, Akihiko Nishio, Seigo Nakao, Yoshihiko Ogawa 2024-12-31
12177853 Communication device and SRS transmission control method Akihiko Nishio 2024-12-24
12177161 Integrated circuit for controlling radio communication Atsushi Matsumoto, Takashi Iwai, Yoshihiko Ogawa, Tomofumi Takata, Katsuhiko Hiramatsu 2024-12-24
12171009 Wireless communication apparatus and channel allocation method Seigo Nakao, Akihiko Nishio 2024-12-17
12149472 Method of scrambling reference signals, device and user equipment using the method Hui Tong, Masayuki Hoshino, Ming Xu 2024-11-19
12143968 Wireless communication apparatus and wireless communication method Masayuki Hoshino, Akihiko Nishio, Seigo Nakao, Yasuaki Yuda 2024-11-12
12143200 Terminal station apparatus, base station apparatus, transmission method and control method Yoshihiko Ogawa, Akihiko Nishio, Takashi Iwai, Seigo Nakao, Atsushi Sumasu 2024-11-12
12132566 Terminal apparatus and sequence assigning method Yoshihiko Ogawa, Sadaki Futagi, Tomofumi Takata 2024-10-29
12126432 Integrated circuit for controlling selection of random access preamble sequence Takashi Iwai, Kazunori Inogai, Sadaki Futagi, Atsushi Matsumoto 2024-10-22