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

Toru Sakai — 101 Patents

Amazon: 44 patents #163 of 19,158Top 1%
HCHitachi Industrial Equipment Systems Co.: 13 patents #26 of 550Top 5%
TSTaiyo Nippon Sanso: 8 patents #5 of 203Top 3%
Panasonic: 8 patents #3,332 of 21,108Top 20%
Honda Motor Co.: 7 patents #3,151 of 21,052Top 15%
TLTouch Biometrix Limited: 5 patents #4 of 5Top 80%
NCNhk Spring Co.: 3 patents #263 of 1,116Top 25%
TCToho Kasei Co.: 2 patents #4 of 37Top 15%
Toyota: 2 patents #11,016 of 26,838Top 45%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
ACAisin Aw Co.: 2 patents #784 of 2,011Top 40%
U.S. Philips: 1 patents #4,149 of 8,851Top 50%
Casio Computer Co.: 1 patents #1,284 of 1,970Top 70%
DLDenka Company Limited: 1 patents #223 of 434Top 55%
JAJapan Science And Technology Agency: 1 patents #756 of 2,171Top 35%
Philips: 1 patents #3,761 of 7,731Top 50%
NCNissin Electric Co.: 1 patents #95 of 208Top 50%
OPOsaka Prefecture: 1 patents #15 of 59Top 30%
OCOtsuka Chemical Co.: 1 patents #131 of 269Top 50%
Canon: 1 patents #14,969 of 19,416Top 80%
Hitachi: 1 patents #17,777 of 28,497Top 65%
St Asaph, GB: #1 of 14 inventorsTop 8%
Overall (All Time): #14,231 of 4,157,543Top 1%
101 Patents All Time
Toru Sakai has been granted 101 US patents while listed as an inventor at Amazon. The first was granted in 1990 and the most recent in November 2025. Toru Sakai ranks #14,231 of 4,157,543 US inventors in our database (top 0.34%). Patent records list Toru Sakai in St Asaph, GB.

Patents per Year

Patents granted per year, 1990 to 2025Bar chart with a peak of 22 patents in 2019.peak 221990: 2 patents19901992: 2 patents1994: 1 patents19942008: 1 patents2010: 1 patents20102011: 1 patents2012: 4 patents20122013: 2 patents2015: 5 patents20152016: 1 patents2017: 9 patents20172018: 14 patents2019: 22 patents20192020: 9 patents2021: 8 patents20212022: 4 patents2023: 3 patents20232024: 10 patents2025: 2 patents2025

Issued Patents All Time

Showing 1–25 of 101 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12459054 Laser welding device and laser welding method Michio Sakurai 2025-11-04
12322203 Biometric skin contact sensor and methods of operating a biometric skin contact sensor Henricus Derckx, Michael A. Cowin, Wilhelmus Johannes Robertus Van Lier 2025-06-03
12157796 Method for producing decolored polyester, decolored polyester, and decoloring agent Masaki Takao, Hiroshi Fujita, Shuji Inada 2024-12-03
12141635 Smartcard inlay and method of manufacturing a smartcard inlay Michael A. Cowin, Henricus Derckx, Wilhelmus Johannes Robertus Van Lier 2024-11-12
12125307 Biometric skin contact sensor and methods of operating a biometric skin contact sensor Henricus Derckx, Michael A. Cowin, Wilhelmus Johannes Robertus Van Lier 2024-10-22
12100238 Biometric skin contact sensor and methods of operating a biometric skin contact sensor Henricus Derckx, Michael A. Cowin, Wilhelmus Johannes Robertus Van Lier 2024-09-24
12076817 Laser welding device Atsuhiro Kawamoto, Junji Fujiwara, Michio Sakurai 2024-09-03
12017299 Laser welding method Michio Sakurai, Kenta Kubota, Takashi Urashima, Daichi Higashi 2024-06-25
11999008 Laser welding device and laser welding method Michio Sakurai, Takashi Urashima, Daichi Higashi 2024-06-04
11964339 Laser welding device and laser welding method Michio Sakurai 2024-04-23
11961321 Biometric skin contact sensor and method of operating a biometric skin contact sensor Henricus Derckx, Wilhelmus Johannes Robertus Van Lier 2024-04-16
11872657 Welding system, and method for welding workpiece in which same is used Michio Sakurai, Narumi Atsuta, Masashi Yoshida 2024-01-16
11645094 Information processing apparatus, information processing method, and storage medium 2023-05-09
11613324 Saddle riding vehicle Takuro Tanaka, Kei Mayuzumi 2023-03-28 $151,000
11591175 Sheet feeder, control method of sheet feeder, and storage medium Tadashi Nakamura, Yoshihiro Taniike, Shigeru Kosuda, Toshio Ohki, Masanori Tamai +2 more 2023-02-28 $27,000
11536305 Junction structure Junji Fujiwara, Atsuhiro Kawamoto, Tatsuyuki Nakagawa 2022-12-27
11511370 Laser welding method Michio Sakurai, Toshiyuki Mishima, Kenta Kubota, Kensuke Urata 2022-11-29
11407464 Front structure of saddle riding vehicle Shota Yamasaki, Keita Mikura 2022-08-09 $158,000
11251670 Axial air-gap rotary electric machine having a different number of internal side layers and external side layers Hirooki TOKOI, Daisuke Kitajima, Tomonori Kawagoe, Katsuyuki Yamazaki, Shuuichi TAKAHASHI +4 more 2022-02-15
11190062 Axial gap type rotating electric machine and stator Tomonori Kawagoe, Daisuke Kitajima, Katsuyuki Yamazaki, Toshifumi Suzuki, Shuuichi TAKAHASHI +1 more 2021-11-30
11165312 Axial-gap dynamo-electric machine Hirooki TOKOI, Shuuichi TAKAHASHI, Yasuei YONEOKA, Toshifumi Suzuki, Katsuyuki Yamazaki +3 more 2021-11-02
11149121 Method for producing composite resin particles, resin molded article, and composite resin particles Yasuhito KODA, Kentaro MIYOSHI, Katsunori Takada 2021-10-19
11139714 Axial gap rotary electric machine Yasuei YONEOKA, Shuuichi TAKAHASHI, Toshifumi Suzuki, Katsuyuki Yamazaki, Daisaku Takahashi +1 more 2021-10-05
10992203 Axial gap type rotary electric machine Hirooki TOKOI, Shuuichi TAKAHASHI, Yasuei YONEOKA, Toshifumi Suzuki, Kenji Uzawa +2 more 2021-04-27
10941224 Composite resin material and molded body Hirokazu Yamamoto, Kazuya Ninomiya, Hirotaka ITAMI, Takafumi Nakagawa, Kentaro MIYOSHI +1 more 2021-03-09