Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Jun Kojima — 27 Patents

Denso: 12 patents #974 of 11,792Top 9%
Toyota: 5 patents #5,736 of 26,838Top 25%
HKHamamatsu Photonics K.K.: 4 patents #453 of 1,436Top 35%
NASA: 2 patents #964 of 3,881Top 25%
Yamaha Motor: 2 patents #855 of 2,310Top 40%
YEYaskawa Electric: 2 patents #384 of 1,006Top 40%
Nec: 2 patents #5,544 of 14,502Top 40%
Casio Computer Co.: 1 patents #1,284 of 1,970Top 70%
CCCasio Electronics Manufacturing Co.: 1 patents #54 of 107Top 55%
MTMirise Technologies: 1 patents #55 of 133Top 45%
MCMurata Manufacturing Co.: 1 patents #3,462 of 5,295Top 70%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
Overall (All Time): #142,059 of 4,157,543Top 4%
27 Patents All Time
Jun Kojima has been granted 27 US patents while listed as an inventor at Denso. The first was granted in 1999 and the most recent in December 2025. Jun Kojima ranks #142,059 of 4,157,543 US inventors in our database (top 3.4%). Patent records list Jun Kojima in Nagoya, OH, JP.

Issued Patents All Time

Showing 1–25 of 27 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12507453 Semiconductor device and manufacturing method of semiconductor device Setsuo Hasegawa, Takashi Ushijima, Taichi Ishida, Shoichi Onda, Chiaki Sasaoka 2025-12-23
12476156 Semiconductor chip and method for manufacturing the same Masatake Nagaya, Hideki Watanabe, Junji Ohara, Daisuke Kawaguchi, Keita Hara +2 more 2025-11-18
12467161 Method for manufacturing semiconductor device, and semiconductor wafer Junji Ohara, Taichi Ishida, Yoshitaka Nagasato, Daisuke Kawaguchi, Chiaki Sasaoka +1 more 2025-11-11
12334339 Manufacturing method of semiconductor device SHOSUKE NAKABAYASHI, Masatake Nagaya, Chiaki Sasaoka, Shoichi Onda, Daisuke Kawaguchi +4 more 2025-06-17
11810821 Semiconductor chip and method for manufacturing the same Masatake Nagaya, Kazukuni Hara, Daisuke Kawaguchi, Toshiki Yui, Chiaki Sasaoka +1 more 2023-11-07
11810783 Gallium nitride semiconductor device and method for manufacturing the same Chiaki Sasaoka, Shoichi Onda, Masatake Nagaya, Kazukuni Hara, Daisuke Kawaguchi 2023-11-07
11784039 Method for manufacturing gallium nitride semiconductor device Chiaki Sasaoka, Shoichi Onda, Masatake Nagaya, Kazukuni Hara, Daisuke Kawaguchi 2023-10-10
D941225 Water vehicle 2022-01-18
D911217 Unmanned ground vehicle 2021-02-23
9325209 Rotating electrical machine and manufacturing method of rotor Kiyomi INOUE, Kensuke NAKAZONO, Yoshiaki KAMEI 2016-04-26
9130429 Rotating electrical machine Takaaki Shibuya, Mitsuru IWAKIRI, Manabu Harada 2015-09-08
9053834 Silicon carbide single crystal and manufacturing method of the same Fusao Hirose, Kazutoshi Kojima, Tomohisa Kato, Ayumu Adachi, Koichi Nishikawa 2015-06-09 $1,387,000
8995842 Secured optical communications using quantum entangled two-photon transparency modulation Quang-Viet Nguyen, John Lekki 2015-03-31
8882911 Apparatus for manufacturing silicon carbide single crystal Yuuichirou Tokuda, Kazukuni Hara 2014-11-11
8612794 Clock signal generating device and electronic device 2013-12-17
8591654 Device for manufacturing sic single crystal and method for the same Yasuo Kitou 2013-11-26
8310671 Interference-free optical detection for Raman spectroscopy Quang-Viet Nguyen, David G Fischer 2012-11-13
7968892 Silicon carbide semiconductor device Takeshi Endo, Eiichi Okuno, Yoshihito Mitsuoka, Yoshiyuki Hisada, Hideo Matsuki 2011-06-28
7813406 Temporal laser pulse manipulation using multiple optical ring-cavities Quang-Viet Nguyen 2010-10-12
7365363 Silicon carbide semiconductor device and method for manufacturing the same Takeshi Endo, Eiichi Okuno, Yoshihito Mitsuoka, Yoshiyuki Hisada, Hideo Matsuki 2008-04-29
6657827 Head Mitsumasa Fukuda, Yukio Sakamoto 2003-12-02
6625442 Mobile communication system having service sub-areas independently assigned special services 2003-09-23 $16,000
6573534 Silicon carbide semiconductor device Rajesh Kumar, Tsuyoshi Yamamoto, Shoichi Onda, Mitsuhiro Kataoka, Kunihiko Hara +1 more 2003-06-03
6551865 Silicon carbide semiconductor device and method of fabricating the same Rajesh Kumar, Hiroki Nakamura 2003-04-22
6272344 Position registration method for mobile communications system 2001-08-07 $33,000