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

Naoto Ishii — 61 Patents

Nec: 50 patents #69 of 14,502Top 1%
Honda Motor Co.: 6 patents #3,726 of 21,052Top 20%
OUOsaka University: 4 patents #157 of 1,984Top 8%
TDThe Doshisha: 4 patents #7 of 175Top 4%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
TCTokyo Seat Co.: 1 patents #5 of 38Top 15%
The Yokohama Rubber Co.: 1 patents #666 of 1,136Top 60%
Tokyo, JP: #1,300 of 90,295 inventorsTop 2%
Overall (All Time): #37,626 of 4,157,543Top 1%
61 Patents All Time
Naoto Ishii has been granted 61 US patents while listed as an inventor at Nec. The first was granted in 1987 and the most recent in December 2025. Naoto Ishii ranks #37,626 of 4,157,543 US inventors in our database (top 0.91%). Patent records list Naoto Ishii in Tokyo, JP.

Patents per Year

Patents granted per year, 1987 to 2025Bar chart with a peak of 6 patents in 2022.peak 61987: 1 patents19872001: 1 patents2002: 2 patents2003: 1 patents20032004: 1 patents2005: 1 patents2006: 1 patents20062007: 1 patents2008: 3 patents2010: 1 patents20102011: 1 patents2012: 2 patents2013: 2 patents20132014: 1 patents2015: 2 patents2016: 2 patents20162017: 5 patents2018: 2 patents2019: 2 patents20192020: 4 patents2021: 4 patents2022: 6 patents20222023: 6 patents2024: 6 patents2025: 3 patents2025

Issued Patents All Time

Showing 1–25 of 61 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12506548 Base station, method for base station, and computer readable medium Takashi Doi, Kazushi Muraoka, Jun SHIKIDA 2025-12-23
12467642 Outdoor unit of air-conditioning apparatus Kimitaka KADOWAKI, Akinori KURACHI, Tsukine MATSUGAMI, Tomoya Kimura 2025-11-11
12392501 Hot-water supply and heating system Takenori Matsumoto, Tsukine MATSUGAMI, Kimitaka KADOWAKI 2025-08-19
12126364 Delta-sigma modulation apparatus, delta-sigma modulation method, and recording medium Masaaki Tanio, Kazushi Muraoka 2024-10-22
12052055 Method of equalizing waveform distortion, terminal device, and optical communication system Shinsuke Fujisawa, Ankith VINAYACHANDRAN, Emmanuel Le Taillandier De Gabory, Fatih Yaman, Hussam G. Batshon 2024-07-30
12016020 Radio communication system and communication control method Le Liu, Yoshikazu Kakura, Takamichi Inoue 2024-06-18
11933715 Ozone deterioration evaluation method and evaluation system of vulcanized rubber material Gang Hou, Taro Takahashi, Masahiko Miyamoto 2024-03-19 $163,000
11881970 Radio wave feature value computation apparatus, radio wave emission source identification apparatus, and method therefor Kiyohiko Takahashi, Toshiki Takeuchi 2024-01-23
11864180 Radio communication system and communication control method Le Liu, Yoshikazu Kakura, Takamichi Inoue 2024-01-02
11831347 Parameter determination apparatus, signal transmission apparatus, parameter determination method, signal transmission method and recording medium Masaaki Tanio, Norifumi Kamiya 2023-11-28
11796203 Air-conditioning apparatus Yuji Motomura, Kimitaka KADOWAKI 2023-10-24
11777585 Wireless receiving apparatus and method thereof Takanobu Doi, Kazushi Muraoka, Takumi Takahashi, Shinsuke Ibi 2023-10-03
11671963 Radio communication system and communication control method Le Liu, Yoshikazu Kakura, Takamichi Inoue 2023-06-06
11627485 Computer system and method therefor Kazushi Muraoka, Takumi Takahashi, Shinsuke Ibi 2023-04-11
11595153 Receiver apparatus, and method for producing parameters for demodulation Kazushi Muraoka, Takanobu Doi, Takumi Takahashi, Seiichi Sampei, Shinsuke Ibi 2023-02-28
11489790 Mobile communication system, base station, mobile station, and power-saving transmission and reception method used in them Jinsock Lee 2022-11-01
11452173 Remote radio head, beamforming method and storage medium Dileep Kumar, Kazushi Muraoka 2022-09-20
11418227 Radio apparatus, signal detection method, non-transitory computer readable medium, and radio communication system Jun SHIKIDA 2022-08-16
11394586 Wireless apparatus and channel prediction method Jun SHIKIDA, Kazushi Muraoka 2022-07-19
11309991 Wireless receiver apparatus Kazushi Muraoka, Takumi Takahashi, Seiichi Sampei, Shinsuke Ibi 2022-04-19
11251856 Control apparatus, radio communication method, and non-transitory computer readable medium Jun SHIKIDA 2022-02-15
11196468 Control apparatus, radio communication method, and radio communication program Jun SHIKIDA 2021-12-07
11140702 Radio communication system and communication control method Le Liu, Yoshikazu Kakura, Takamichi Inoue 2021-10-05
10992499 Radio apparatus, channel estimation method, non-transitory computer readable medium, and radio communication system Jun SHIKIDA, Kazushi Muraoka 2021-04-27
10904166 Mobile communication system, base station, mobile station, and power-saving transmission and reception method used in them Jinsock Lee 2021-01-26