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

Kenji Nagai — 62 Patents

TLTokyo Electron Limited: 15 patents #423 of 5,567Top 8%
Hitachi: 13 patents #3,143 of 28,497Top 15%
Huawei: 10 patents #1,396 of 15,535Top 9%
SLSpansion Llc.: 6 patents #149 of 769Top 20%
Fujitsu Limited: 6 patents #5,180 of 24,456Top 25%
KTKabushiki Kaisha Top: 2 patents #29 of 213Top 15%
UNUniden: 2 patents #38 of 137Top 30%
HEHitachi Vlsi Engineering: 2 patents #292 of 666Top 45%
FLFujitsu Vlsi Limited: 2 patents #41 of 256Top 20%
Toyota: 1 patents #15,486 of 26,838Top 60%
NCNippon Oil & Fats Co.: 1 patents #173 of 409Top 45%
CCCosmo Oil Co.: 1 patents #111 of 229Top 50%
HMHitachi Aloka Medical: 1 patents #35 of 93Top 40%
KUKyushu University, National University: 1 patents #221 of 767Top 30%
KUKyushu University, Nat'L University: 1 patents #3 of 30Top 10%
ACAisin Aw Co.: 1 patents #1,133 of 2,011Top 60%
3M: 1 patents #7,251 of 11,543Top 65%
Canon: 1 patents #14,969 of 19,416Top 80%
Sony: 1 patents #17,321 of 25,231Top 70%
Overall (All Time): #36,550 of 4,157,543Top 1%
62 Patents All Time
Kenji Nagai has been granted 62 US patents while listed as an inventor at Tokyo Electron Limited. The first was granted in 1985 and the most recent in June 2025. Kenji Nagai ranks #36,550 of 4,157,543 US inventors in our database (top 0.88%). Patent records list Kenji Nagai in Yokohama, MH, JP.

Patents per Year

Patents granted per year, 1992 to 2025Bar chart with a peak of 5 patents in 2022.peak 51992: 1 patents19921994: 1 patents1995: 1 patents1996: 2 patents19961997: 1 patents1999: 1 patents2000: 1 patents20002001: 1 patents2002: 3 patents2003: 1 patents20032004: 4 patents2005: 1 patents2006: 3 patents20062008: 1 patents2009: 2 patents2010: 3 patents20102011: 2 patents2012: 1 patents2014: 1 patents20142015: 3 patents2016: 2 patents2017: 1 patents20172018: 1 patents2019: 2 patents2020: 1 patents20202021: 1 patents2022: 5 patents2023: 4 patents20232024: 5 patents2025: 3 patents2025

Issued Patents All Time

Showing 1–25 of 62 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12332703 Hinge and mobile terminal Changliang Liao, Weifeng Wu, Li Liao, Ding Zhong, Qiao DENG 2025-06-17
12321531 Keyboard assembly and electronic device Fumio Tamura, Yake Zou, Song Wang, Hui LIN, Lingfeng Zeng +1 more 2025-06-03
12316791 Rotation shaft structure and electronic device Changliang Liao, Weifeng Wu, Li Liao, Ding Zhong, Qiao DENG +9 more 2025-05-27
12081686 Hinge mechanism and foldable mobile terminal Shinichi Koarata, Yake Zou, Tomoaki Kai 2024-09-03
12047521 Rotation shaft structure and electronic device Changliang Liao, Weifeng Wu, Li Liao, Ding Zhong, Qiao DENG +9 more 2024-07-23
11920928 System and method for correcting optical path length measurement errors Hideaki Nagasaki 2024-03-05
11914433 Hinge and mobile terminal Changliang Liao, Weifeng Wu, Li Liao, Ding Zhong, Qiao DENG 2024-02-27
11869752 System and method for transferring a focus ring into processing apparatus Kippei Sugita 2024-01-09
11846997 Rotating shaft mechanism and mobile terminal Li Liao, Changliang Liao, Ding Zhong, Tao Huang 2023-12-19
11817335 Method and system for inspecting processing apparatus Kippei Sugita 2023-11-14
11710614 Light interference system and substrate processing apparatus Hideaki Nagasaki, Satoshi Suzuki 2023-07-25
11668608 Temperature measurement system and temperature measurement method Tong Wu 2023-06-06
11513194 Ranging apparatus and method using the ranging apparatus Kippei Sugita 2022-11-29
11467633 Hinge and mobile terminal Changliang Liao, Weifeng Wu, Li Liao, Ding Zhong, Qiao DENG 2022-10-11
11395424 Rotating mechanism and foldable terminal Lexiong Peng 2022-07-19
11336759 Rotating shaft mechanism and mobile terminal Li Liao, Ding Zhong, Tao Huang 2022-05-17
11264267 Apparatus for processing substrate and method for detecting a presence of a focus ring on a stage Takaharu MIYADATE, Takashi Taira, Hideaki Nagasaki 2022-03-01
10964575 Transfer robot system, teaching method and wafer receptacle Kippei Sugita 2021-03-30
10610856 Catalyst for catalytic cracking of hydrocarbon oil and method for catalytic cracking of hydrocarbon oil Yuji Saka, Tetsuya Kimura, Norihito Chiyoda, Mitsunori Tabata 2020-04-07
10354896 Position detection system and processing apparatus Kippei Sugita 2019-07-16
10199251 Position detecting system and processing apparatus Kippei Sugita, Hidetoshi Kimura 2019-02-05
9976129 Fusion protein for protein detection, and method for detecting protein Noriho Kamiya, Kyoichi Matsuba, Kounosuke Hayashi 2018-05-22
9812996 Method for calculating distance, method for neutralizing electrostatic chuck, and processing apparatus Yoshinobu Ooya 2017-11-07
9388454 Method for producing protein-nucleic acid conjugate, and method for detecting target substance Noriho Kamiya, Kounosuke Hayashi 2016-07-12
9276104 High-frequency semiconductor device and method of manufacturing the same Hiroki Tsunemi, Hideo Yamagata, Yuji Ibusuki 2016-03-01 $328,000