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

Koji Hayashi — 183 Patents

Toyota: 29 patents #607 of 26,838Top 3%
JLJapan Aviation Electronics Industry, Limited: 20 patents #51 of 728Top 8%
SCSanyo Electric Co.: 17 patents #221 of 6,347Top 4%
DIDic: 16 patents #21 of 844Top 3%
Ricoh Company: 14 patents #1,580 of 9,818Top 20%
Brother Kogyo: 12 patents #734 of 2,767Top 30%
Eastman Kodak: 9 patents #1,246 of 8,114Top 20%
MCMurata Manufacturing Co.: 8 patents #980 of 5,295Top 20%
Mitsubishi Electric: 7 patents #4,301 of 25,717Top 20%
UIUbe Industries: 4 patents #315 of 1,686Top 20%
SISumitomo Rubber Industries: 4 patents #529 of 1,637Top 35%
TCToa Industries Co.: 4 patents #1 of 9Top 15%
Denso: 3 patents #3,857 of 11,792Top 35%
FIFujifilm Business Innovation: 3 patents #2,684 of 1,659Top 165%
HTHitachi Plant Technologies: 2 patents #55 of 279Top 20%
FLFuruno Electric Company Limited: 2 patents #137 of 407Top 35%
YAYazaki: 2 patents #1,635 of 3,427Top 50%
TCTachikawa Spring Co.: 2 patents #18 of 77Top 25%
Hitachi: 2 patents #13,405 of 28,497Top 50%
DIDaikin Industries: 2 patents #1,262 of 2,957Top 45%
JHJae Hirosaki: 2 patents #6 of 16Top 40%
JCJapan Storage Battery Co.: 1 patents #91 of 170Top 55%
NLNippon Sheet Glass Company, Limited: 1 patents #482 of 836Top 60%
OMOmron: 1 patents #1,808 of 3,089Top 60%
DIDenso Wave Incorporated: 1 patents #133 of 250Top 55%
INIntec: 1 patents #16 of 51Top 35%
Nec: 1 patents #7,928 of 14,502Top 55%
TATaikisha: 1 patents #35 of 96Top 40%
CCChuo Denki Kogyo Co.: 1 patents #5 of 18Top 30%
TIToray Industries: 1 patents #2,000 of 3,690Top 55%
TUTungaloy: 1 patents #62 of 99Top 65%
KCKodak Polychrome Graphics Company: 1 patents #119 of 213Top 60%
UNUnitika: 1 patents #257 of 620Top 45%
UCUnitika Glass Fiber Co.: 1 patents #9 of 23Top 40%
YEYokogawa Electric: 1 patents #658 of 1,441Top 50%
BIBrother Industries: 1 patents #225 of 325Top 70%
FCFuture Technology Co.: 1 patents #6 of 9Top 70%
MKMitsubishi Kasei: 1 patents #404 of 911Top 45%
MVMitsubishi Kasei Vinyl: 1 patents #7 of 30Top 25%
MBMitsuboshi Belting: 1 patents #183 of 333Top 55%
MIMitutoyo: 1 patents #455 of 721Top 65%
MCMitutoyo Mfg. Co.: 1 patents #56 of 118Top 50%
Overall (All Time): #4,123 of 4,157,543Top 1%
183 Patents All Time
Koji Hayashi has been granted 183 US patents while listed as an inventor at Toyota. The first was granted in 1982 and the most recent in June 2024. Koji Hayashi ranks #4,123 of 4,157,543 US inventors in our database (top 0.10%). Patent records list Koji Hayashi in Miyoshi, NY, JP.

Patents per Year

Patents granted per year, 1994 to 2024Bar chart with a peak of 15 patents in 2015.peak 151994: 1 patents19941995: 3 patents1997: 1 patents1998: 2 patents19981999: 4 patents2000: 2 patents2001: 3 patents20012002: 8 patents2003: 2 patents2004: 5 patents20042005: 3 patents2006: 10 patents2007: 6 patents20072008: 5 patents2009: 6 patents2010: 8 patents20102011: 8 patents2012: 5 patents2013: 7 patents20132014: 8 patents2015: 15 patents2016: 14 patents20162017: 4 patents2018: 8 patents2019: 9 patents20192020: 1 patents2021: 8 patents2022: 7 patents20222023: 3 patents2024: 4 patents2024

Issued Patents All Time

Showing 1–25 of 183 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12017980 Monofunctional phenolic compound, active ester resin and method for producing the same, and thermosetting resin composition and cured product thereof Masaki Hazama 2024-06-25 $22,163,000
11982687 IC chip holder Hidekazu Komiya 2024-05-14
11901249 Curable composition and cured product thereof Yutaka Satou, Kazuhisa Yamoto 2024-02-13 $18,546,000
11873356 Curable composition and cured product thereof Kazuhisa Yamoto, Yutaka Satou 2024-01-16 $42,805,000
11745448 Method for manufacturing composite material product 2023-09-05
11584168 Tire Ryo Oba, Kenji Ueda, Masatomo Nakamura, Masaki Terashima, Masahiro NAGASE +3 more 2023-02-21
11548977 Active ester resin and composition and cured product using the same Yutaka Satou, Kazuhisa Yamoto 2023-01-10 $14,061,000
11499991 IC chip holder Hidekazu Komiya 2022-11-15
11441670 Hydraulic supply system Kota Fujii, Yuki Makino, Toshiaki TAMACHI, Tooru Matsubara, Ken Fujimoto +1 more 2022-09-13 $469,000
D956138 IC chip holder for textile printer Hidekazu Komiya 2022-06-28
11327856 Robot application management device, system, method and program Tatsuya Fukuta, Ruri Hamada 2022-05-10 $19,182,000
11316989 Processing system and non-transitory computer readable medium for controlling execution of registration process on image processing apparatus 2022-04-26
11286385 Epoxy resin composition, curable resin composition, and fiber-reinforced composite material Nana Sugimoto, Kunihiro Morinaga 2022-03-29 $28,068,000
11240394 Information processing apparatus for invalidating an operation setting from a second device 2022-02-01
11198755 Epoxy resin, epoxy resin composition containing same, and cured product using said epoxy resin composition Nana Sugimoto, Gaku Ehara 2021-12-14
11174191 Glass composition, glass fibers, glass cloth, and method for producing glass fibers Yoshiyuki Inaka, Takaharu Miyazaki, Riku Sawai, Yoshito NAWA, Daisuke NISHINAKA +1 more 2021-11-16
11142206 Control device for vehicle Atsushi Tabata, Koichi Okuda, Masato Nakano, Toshiaki TAMACHI, Daiki Sato 2021-10-12 $832,000
11055031 Information processing apparatus and non-transitory computer readable medium 2021-07-06
11015019 Epoxy resin, production method, epoxy resin composition and cured product of same Yousuke Hirota, Shota Tanii, Kunihiro Morinaga 2021-05-25
10982040 Epoxy resin, epoxy resin composition including same, and cured product using said epoxy resin composition Nana Sugimoto, Kunihiro Morinaga 2021-04-20
10960656 Negatively-working lithographic printing plate precursor and method James Matz, Satoshi Ishii, Yoshiaki Sekiguchi, Masamichi Kamiya 2021-03-30 $59,050,000
10889298 Vehicle control apparatus 2021-01-12
10686945 Diagnosis system, diagnosis method and storage medium 2020-06-16
10486570 Vehicle headrest Hisaya Mori 2019-11-26 $327,000
10441036 Buckle device Tomotaka Suzuki, Tetsushi Urushibata 2019-10-15