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

Ken Matsubara — 86 Patents

MIMinolta: 21 patents #78 of 1,109Top 8%
RTRenesas Technology: 12 patents #178 of 3,337Top 6%
JTJtekt: 12 patents #104 of 1,969Top 6%
KCKyoyu Agri Co.: 11 patents #1 of 16Top 7%
MCMinolta Co.: 10 patents #213 of 1,416Top 20%
Hitachi: 7 patents #5,864 of 28,497Top 25%
RERenesas Electronics: 7 patents #554 of 4,529Top 15%
HCHitachi Ulsi Systems Co.: 6 patents #125 of 867Top 15%
Denso: 4 patents #3,129 of 11,792Top 30%
KCKoyo Seiko Co.: 2 patents #228 of 749Top 35%
Nagano, JP: #28 of 3,331 inventorsTop 1%
Overall (All Time): #19,585 of 4,157,543Top 1%
86 Patents All Time
Ken Matsubara has been granted 86 US patents while listed as an inventor at Minolta. The first was granted in 1989 and the most recent in November 2024. Ken Matsubara ranks #19,585 of 4,157,543 US inventors in our database (top 0.47%). Patent records list Ken Matsubara in Nagano, JP.

Patents per Year

Patents granted per year, 1991 to 2024Bar chart with a peak of 9 patents in 2019.peak 91991: 3 patents19911992: 5 patents1993: 2 patents1994: 3 patents19941995: 1 patents1997: 1 patents1999: 2 patents19992000: 3 patents2001: 5 patents2002: 2 patents20022003: 3 patents2004: 1 patents2005: 3 patents20052006: 4 patents2007: 2 patents2008: 2 patents20082009: 5 patents2010: 5 patents2012: 2 patents20122013: 2 patents2014: 2 patents2015: 1 patents20152016: 2 patents2017: 3 patents2018: 1 patents20182019: 9 patents2020: 1 patents2022: 1 patents20222023: 2 patents2024: 1 patents2024

Issued Patents All Time

Showing 1–25 of 86 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12154610 Semiconductor device and semiconductor system Genta Watanabe, Tomoya Saito, Akihiko Kanda, Koichi Takeda, Takahiro SHIMOI 2024-11-26
11679437 Compressed powder magnetic core, powder for magnetic core, and production methods therefor Seishi Utsuno, Jung Hwan HWANG, Masataka Mitomi 2023-06-20
11652374 Rotary electrical machine with stator core having powder bodies within holes Makoto Taniguchi, Akira Fukushima, Satoshi Doi 2023-05-16
11328848 Dust core, powder for magnetic cores, and methods of manufacturing them Seishi Utsuno, Jung Hwan HWANG 2022-05-10
10832840 Powder for dust cores, method for producing same, dust core and method for producing dust core Jung Hwan HWANG, Seishi Utsuno 2020-11-10
10258041 Substituted pyrazolylpyrazole derivative and use of same as herbicide Makoto Niino 2019-04-16
10258039 Substituted pyrazolylpyrazole derivative and use of same as herbicide Makoto Niino 2019-04-16
10258042 Substituted pyrazolylpyrazole derivative and use of same as herbicide Makoto Niino 2019-04-16
10255956 Semiconductor device Takashi Iwase 2019-04-09
10192621 Flash memory Takashi Iwase, Satoru Nakanishi 2019-01-29
10165777 Substituted pyrazolylpyrazole derivative and use of same as herbicide Makoto Niino 2019-01-01
10165776 Substituted pyrazolylpyrazole derivative and use of same as herbicide Makoto Niino 2019-01-01
10165779 Substituted pyrazolylpyrazole derivative and use of same as herbicide Makoto Niino 2019-01-01
10167288 Substituted pyrazolylpyrazole derivative and use of same as herbicide Makoto Niino 2019-01-01
9947409 Flash memory Takashi Iwase, Satoru Nakanishi 2018-04-17
9593122 Substituted pyrazolylpyrazole derivative and use of same as herbicide Makoto Niino 2017-03-14
9593112 Substituted pyrazolylpyrazole derivative and use of same as herbicide Makoto Niino 2017-03-14
9556183 Substituted pyrazolylpyrazole derivative and use of same as herbicide Makoto Niino 2017-01-31
9518061 Substituted pyrazolylpyrazole derivative and use of same as herbicide Makoto Niino 2016-12-13
9358925 Warning device for vehicle Yuji Kariatsumari, Yasuyuki Yoshii, Tatsuma Kouchi, Yuichi Miura 2016-06-07
9199526 Vehicle and vehicle driving device Yasuhiko Hasuda, Masanori Arima, Hideki Higashira 2015-12-01
8739919 Motor and electric power steering system Noboru Niguchi, Naotake Kanda, Toshimasa Soku 2014-06-03
8689926 Vehicle steering apparatus and manufacturing method of same Shigeki Nagase, Shiro Nakano, Motoo Nakai, Kunihiro Oka, Naotake Kanda +3 more 2014-04-08
8441880 Nonvolatile memory, data processing apparatus, and microcomputer application system Toru Matsushita, Takashi Iwase, Hidenori Mitani, Jun Setogawa, Fumiko Yamada 2013-05-14
8408353 Vehicle steering apparatus Shigeki Nagase, Minoru Sentoku, Kunihiro Oka, Motoo Nakai, Kouya Yoshida +2 more 2013-04-02