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

Jun Ito — 227 Patents

SESeiko Epson: 52 patents #186 of 7,774Top 3%
TCToyoda Gosei Co.: 31 patents #35 of 2,296Top 2%
Honda Motor Co.: 30 patents #241 of 21,052Top 2%
Nintendo Co.: 22 patents #55 of 1,476Top 4%
AGAgc: 14 patents #31 of 954Top 4%
Canon: 11 patents #5,866 of 19,416Top 35%
TYTakemoto Yushi: 9 patents #6 of 157Top 4%
Kabushiki Kaisha Toshiba: 6 patents #4,930 of 21,451Top 25%
Hitachi: 6 patents #6,585 of 28,497Top 25%
Sumitomo Electric Industries: 6 patents #4,612 of 21,551Top 25%
SMSuzuki Motor: 5 patents #90 of 1,209Top 8%
NINissan Chemical Industries: 5 patents #259 of 1,150Top 25%
Fujitsu Limited: 4 patents #7,093 of 24,456Top 30%
KOKomatsu: 3 patents #637 of 2,087Top 35%
HCHarada Industry Co.: 2 patents #30 of 119Top 30%
TCTakemoto Oil & Fat Co.: 2 patents #1 of 26Top 4%
Toyota: 2 patents #11,016 of 26,838Top 45%
SCSuzuki Co.: 2 patents #34 of 179Top 20%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
KIKoito Electric Industries: 2 patents #8 of 35Top 25%
Ricoh Company: 1 patents #6,943 of 9,818Top 75%
Denso: 1 patents #6,940 of 11,792Top 60%
FIFujimi Incorporated: 1 patents #125 of 216Top 60%
FLFujitsu Ten Limited: 1 patents #456 of 996Top 50%
ILIsuzu Motors Limited: 1 patents #414 of 908Top 50%
KOKoa: 1 patents #70 of 157Top 45%
MCMekaro Akita Co.: 1 patents #2 of 2Top 100%
NCNitto Boseki Co.: 1 patents #172 of 339Top 55%
SCShiraishi Central Laboratories Co.: 1 patents #6 of 23Top 30%
TOTokuyama: 1 patents #280 of 562Top 50%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
MCMitsubishi Chemical: 1 patents #1,786 of 3,022Top 60%
Overall (All Time): #2,530 of 4,157,543Top 1%
227 Patents All Time
Jun Ito has been granted 227 US patents while listed as an inventor at Seiko Epson. The first was granted in 1983 and the most recent in September 2025. Jun Ito ranks #2,530 of 4,157,543 US inventors in our database (top 0.06%). Patent records list Jun Ito in Gamagori, MH, JP.

Issued Patents All Time

Showing 1–25 of 227 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12404628 Sizing agent for inorganic fibers and inorganic fibers Yohei Suzuki, Takuya Matsunaga 2025-09-02
12392933 Glass plate structure and on-vehicle display device Yukihiro Iwata, Masabumi Ito, Akihisa ISHINO 2025-08-19
12358193 Method for producing glass plate with resin frame for vehicle window and device for producing glass plate with resin frame for vehicle window Kazuhiro Takahashi, Kazuya Kawaguchi 2025-07-15
12351949 Synthetic fiber treatment agent and synthetic fiber Keiichiro Oshima, Takeshi Nishigawa 2025-07-08
12351506 Glass composition for glass fibers, glass fibers, glass fiber textile, and glass fiber-reinforced resin composition Takanobu HOSOKAWA, Tatsuya Komukai, Kazuaki Takagi, Tadashi Kurita 2025-07-08
12325801 Ink jet ink set, ink jet recording method, and ink jet recording apparatus Kiyomi Kumamoto, Yusuke Mizutaki, Tomohito Nakano 2025-06-10
12312738 Treatment agent for elastic fibers, and elastic fibers Takeshi Nishigawa, Kohei Oda 2025-05-27
12221746 Treatment agent for carbon fiber precursors, and carbon fiber precursor Keiichiro Oshima, Yohei Suzuki 2025-02-11
12123130 Treatment agent for elastic fibers, and elastic fiber Keiichiro Oshima, Takeshi Nishigawa 2024-10-22
12123131 Synthetic fiber processing agent and synthetic fiber Keiichiro Oshima, Satoru Hamajima 2024-10-22
12065776 Sizing agent for inorganic fiber, inorganic fiber and production method therefor, and composite material Satoru Hamajima, Keiichiro Oshima 2024-08-20
12043572 Manufacturing method of glass article and glass article Ikuo Nagasawa 2024-07-23
12030803 Glass plate production method, glass plate, glass article production method, glass article, and glass article production apparatus Ikuo Nagasawa 2024-07-09
11952711 Sewing thread treatment agent and sewing thread Hisanori Murata, Shuya Hayakawa 2024-04-09
11884079 Photo-curable ink jet ink set and ink jet recording method using the same Keitaro Nakano 2024-01-30
11718100 Ink jet ink composition, ink jet recording method, and ink set Keiji Iida, Kenichiro Kubota, Naoki Koike, Makoto Nagase 2023-08-08
11665805 Lighting device Tadashi Fujii, Hideto Sanui, Hajime Suzuki, Youmei Kaminaga, Takayuki Izumi +1 more 2023-05-30
11634202 Cooling device for power source for ship propulsion device Toshio Watanabe, Shingo Matsumoto, Yudai Atsumi 2023-04-25
11586223 Vehicle and service management device Shun Iwasaki, Hisao Asaumi, Kentaro Ishisaka, Izumi Kondo, Satoshi Koike +18 more 2023-02-21 $115,000
11524367 Glass plate and manufacturing method of glass plate Ikuo Nagasawa 2022-12-13
11511545 Ink jet recording apparatus, ink jet recording method, and ink composition Yusuke Mizutaki, Tomohiro Aruga, Kiyomi Kumamoto, Tomoki Maruyama 2022-11-29
11505711 Ink jet recording apparatus, ink jet recording method, and ink composition Tomoki Maruyama, Yusuke Mizutaki, Tomohiro Aruga, Kiyomi Kumamoto 2022-11-22
11499064 Ink jet recording apparatus, ink jet recording method, and ink composition Kiyomi Kumamoto, Yusuke Mizutaki, Tomohiro Aruga, Tomoki Maruyama 2022-11-15
11479056 Ink jet recording apparatus, ink jet recording method, and ink composition Tomohiro Aruga, Kiyomi Kumamoto, Tomoki Maruyama, Yusuke Mizutaki 2022-10-25
11456094 Surface-mounted resistor Daigo HAYASHI, Yuko Tezuka 2022-09-27