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

Kenchi Ito — 62 Patents

Hitachi: 55 patents #211 of 28,497Top 1%
TUTohoku University: 5 patents #109 of 1,680Top 7%
CNCNRS: 1 patents #3,857 of 11,908Top 35%
NCNippon Columbia Co.: 1 patents #15 of 66Top 25%
RTRenesas Technology: 1 patents #1,991 of 3,337Top 60%
UCUniversité Paris Cité: 1 patents #123 of 608Top 25%
Kunitachi, JP: #5 of 276 inventorsTop 2%
Overall (All Time): #36,550 of 4,157,543Top 1%
62 Patents All Time
Kenchi Ito has been granted 62 US patents while listed as an inventor at Hitachi. The first was granted in 1991 and the most recent in December 2025. Kenchi Ito ranks #36,550 of 4,157,543 US inventors in our database (top 0.88%). Patent records list Kenchi Ito in Kunitachi, JP.

Issued Patents All Time

Showing 1–25 of 62 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12514127 Electronic device and method for manufacturing electronic device Hiroyuki Ogiso, Masayuki Tochimoto 2025-12-30
11054463 Method and system for measuring thermal stability factor of magnetic tunnel junction device, semiconductor integrated circuit, and production management method for semiconductor integrated circuit Tetsuo Endoh, Hideo Sato, Takashi Saito, Masakazu Muraguchi, Hideo Ohno 2021-07-06
10658572 Magnetoresistance effect element and magnetic memory Hideo Sato, Shoji Ikeda, Mathias Bersweiler, Hiroaki Honjo, Kyota WATANABE +5 more 2020-05-19
10644234 Method for producing magnetic memory comprising magnetic tunnel junction element Tetsuo Endoh, Shoji Ikeda, Hideo Sato, Hideo Ohno, Sadahiko Miura +2 more 2020-05-05
10164174 Magnetoresistance effect element and magnetic memory Hideo Sato, Shoji Ikeda, Mathias Bersweiler, Hiroaki Honjo, Kyota WATANABE +5 more 2018-12-25
9602103 Spin wave device and logic circuit using spin wave device Katsuya Miura, Susumu Ogawa, Masaki Yamada 2017-03-21
9257483 Magnetic memory, method of manufacturing the same, and method of driving the same Takashi Ishigaki, Takayuki Kawahara, Riichiro Takemura, Kazuo Ono 2016-02-09
9042165 Magnetoresistive effect element, magnetic memory cell using same, and random access memory Shoji Ikeda, Hideo Ohno, Hiroyuki Yamamoto, Hiromasa Takahashi 2015-05-26
9000546 Spin-wave waveguide and spin wave operation circuit Masaki Yamada, Susumu Ogawa 2015-04-07
8957486 Magnetic memory Jun Hayakawa, Katsuya Miura, Hiroyuki Yamamoto 2015-02-17
8427864 Semiconductor storage device Takayuki Kawahara, Kiyoo Itoh, Riichiro Takemura 2013-04-23
7872906 Unidirectional-current magnetization-reversal magnetoresistance element and magnetic recording apparatus Katsuya Miura, Jun Hayakawa, Hiromasa Takahashi 2011-01-18 $109,000
7787290 Semiconductor device Riichiro Takemura, Takayuki Kawahara, Hiromasa Takahashi 2010-08-31 $87,000
7778068 Semiconductor device Takayuki Kawahara, Riichiro Takemura, Hiromasa Takahashi 2010-08-17 $78,000
7764538 Magnetic memory and method for writing to magnetic memory 2010-07-27 $109,000
7755932 Spin torque magnetic memory and offset magnetic field correcting method thereof Jun Hayakawa, Katsuya Miura 2010-07-13 $64,000
7738286 Magnetic memory device Hiromasa Takahashi, Takayuki Kawahara, Riichiro Takemura, Thibault Devolder, Paul Crozat +2 more 2010-06-15 $66,000
7675836 Recording/reproducing apparatus with double-sided beam type probe Mieko Ishii, Takeshi Harada, Youichi Inoue 2010-03-09 $98,000
7596014 Semiconductor device Takayuki Kawahara, Riichiro Takemura, Hiromasa Takahashi 2009-09-29 $112,000
7593253 Semiconductor device Riichiro Takemura, Takayuki Kawahara, Hiromasa Takahashi 2009-09-22 $96,000
7554834 Conduction control device Jorg Wunderlich 2009-06-30 $91,000
7508625 Magnetic recording device Hiromasa Takahashi 2009-03-24 $85,000
7443718 Magnetic memory device Hiromasa Takahashi, Takayuki Kawahara, Riichiro Takemura 2008-10-28 $128,000
7436613 Magnetic recording device Hiromasa Takahashi 2008-10-14 $133,000
7349186 Magnetic read head 2008-03-25 $208,000