Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Yasushi Kobayashi — 105 Patents

Fujitsu Limited: 22 patents #1,239 of 24,456Top 6%
MCMinolta Co.: 17 patents #86 of 1,416Top 7%
Panasonic: 12 patents #2,092 of 21,108Top 10%
NINisshinbo Industries: 8 patents #26 of 375Top 7%
ODOki Data: 7 patents #96 of 635Top 20%
Sumitomo Electric Industries: 5 patents #5,365 of 21,551Top 25%
Toyota: 5 patents #5,736 of 26,838Top 25%
Kubota: 4 patents #505 of 2,059Top 25%
NCNippon Light Metal Company: 4 patents #52 of 499Top 15%
Hitachi: 4 patents #8,948 of 28,497Top 35%
MUMurakami: 3 patents #31 of 147Top 25%
SCShinko Electric Industries Co.: 2 patents #392 of 723Top 55%
ALAlcan International Limited: 2 patents #142 of 522Top 30%
Bridgestone: 2 patents #1,066 of 2,860Top 40%
HCHitachi Engineering Co.: 2 patents #103 of 572Top 20%
NKNippon Kayaku: 2 patents #345 of 1,103Top 35%
TEToyo Engineering: 2 patents #62 of 295Top 25%
Nissan Motor Co.: 1 patents #4,519 of 8,689Top 55%
SISumitomo Rubber Industries: 1 patents #1,096 of 1,637Top 70%
ACAdvics Co.: 1 patents #370 of 686Top 55%
NCNew Oji Paper Co: 1 patents #39 of 139Top 30%
HEHitachi Process Computer Engineering: 1 patents #43 of 101Top 45%
AFArkema France: 1 patents #466 of 935Top 50%
Nec: 1 patents #7,928 of 14,502Top 55%
Aisin Seiki Kabushiki Kaisha: 1 patents #2,094 of 3,782Top 60%
OCOji Paper Co.: 1 patents #173 of 423Top 45%
Sakai, JP: #23 of 2,905 inventorsTop 1%
Overall (All Time): #13,163 of 4,157,543Top 1%
105 Patents All Time
Yasushi Kobayashi has been granted 105 US patents while listed as an inventor at Fujitsu Limited. The first was granted in 1984 and the most recent in February 2025. Yasushi Kobayashi ranks #13,163 of 4,157,543 US inventors in our database (top 0.32%). Patent records list Yasushi Kobayashi in Sakai, JP.

Patents per Year

Patents granted per year, 1994 to 2025Bar chart with a peak of 12 patents in 2013.peak 121994: 1 patents19941995: 3 patents1996: 2 patents1997: 1 patents19971998: 4 patents1999: 4 patents2000: 4 patents20002001: 9 patents2002: 4 patents2003: 5 patents20032004: 3 patents2005: 3 patents2006: 4 patents20062008: 4 patents2009: 1 patents2010: 1 patents20102011: 4 patents2012: 3 patents2013: 12 patents20132014: 4 patents2015: 4 patents2016: 3 patents20162018: 2 patents2019: 4 patents2020: 1 patents20202021: 2 patents2022: 3 patents2023: 1 patents20232024: 1 patents2025: 1 patents2025

Issued Patents All Time

Showing 1–25 of 105 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12221936 Diesel engine, diesel engine manufacturing method, and diesel engine injection-amount correction system Hiroki Oso, Kiichi Suehiro, Yuki Tagashira, Koji Nakakita 2025-02-11
12012909 Injector control device Shingo Matsunobu, Kiichi Suehiro, Naotaro Nagai 2024-06-18
11781501 Engine head structure Akira Tamura, Kensuke Fujita, Hiroki Oso, Shingo Matsunobu, Mitsugu Okuda 2023-10-10
11475918 Recording state evaluation method, recording compensation method, and information recording/playback device Kohei Nakata, Yasumori Hino 2022-10-18
11475917 Objective lens, optical head device, optical information device, and optical disk system Yoshiaki Komma, Kazuhiro Minami 2022-10-18
11295779 Optical disk device Kohei Nakata 2022-04-05
11091033 Vehicle control apparatus Takashi Nonaka, Jun Mizuno, Daisuke Kohara, Yuji Yoshii, Gen Inoue +1 more 2021-08-17
10920650 Vertical multicylinder straight engine Takayuki Ichikawa, Mutsuhisa Ishihara, Shinya Asada 2021-02-16
10589682 View angle adjustment mechanism in view device Naomi Sugimura 2020-03-17
10483195 Resin board, method of manufacturing resin board, circuit board, and method of manufacturing circuit board Yoshihiro Nakata, Yoshikatsu Ishizuki, Daijiro Ishibashi, Shinya Sasaki 2019-11-19
10464487 View angle adjustment mechanism in view device Naomi Sugimura 2019-11-05
10246017 View angle adjustment mechanism in view device Naomi Sugimura 2019-04-02
10246759 Method of recovering rare-earth elements Kaoru Sugita, Yoshihiro Taguchi, Wilmon Wallen-Bryan, Worrell Lyew You, Parris A Lyew-Ayee 2019-04-02
9914699 Process of dehydration reactions Jean-Luc Dubois, Kimito Okumura, Ryota Hiraoka 2018-03-13
9911449 Recorder and player apparatus stably keeping track of recording medium Kazuo Momoo, Junichi Asada, Kousei Sano, Yuichi Takahashi 2018-03-06
9489602 Image forming apparatus and method of forming images 2016-11-08
9263326 Interconnection structure and method of forming the same Tsuyoshi Kanki, Yoshihiro Nakata 2016-02-16
9228248 Method of recovering rare-earth elements Kaoru Sugita, Yoshihiro Taguchi, Satoshi Takeda, Yuji Ota, Masashi Ojiri +2 more 2016-01-05
9176448 Image forming apparatus capable of adjusting black and color print densities and control program for adjusting such densities 2015-11-03
9128816 Vehicle operation method presentation device and method, and vehicle control device Toshihisa Nihei 2015-09-08 $759,000
9130207 Locking structure for cover 2015-09-08
9118871 Image formation apparatus 2015-08-25
8791561 Semiconductor device and its manufacture method Sadahiro Kishii, Tsuyoshi Kanki, Yoshihiro Nakata, Masato Tanaka, Akio Rokugawa 2014-07-29
8775484 Data management apparatus and method Kazuyuki Sakai, Yuuki Tada, Tomoyuki Kobayashi 2014-07-08
8769069 Data collection apparatus and method thereof Kazuyuki Sakai, Yuuki Tada, Tomoyuki Kobayashi 2014-07-01