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USPTO Patent Rankings Data through Dec 31, 2025
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Daisuke Jomuta — 14 Patents

AGAgc: 9 patents #69 of 954Top 8%
ACAsahi Glass Co.: 4 patents #490 of 2,251Top 25%
Tokyo, JP: #11,195 of 90,295 inventorsTop 15%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Daisuke Jomuta has been granted 14 US patents while listed as an inventor at Agc. The first was granted in 2017 and the most recent in December 2025. Daisuke Jomuta ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Daisuke Jomuta in Tokyo, JP.

Patents per Year

Patents granted per year, 2017 to 2025Bar chart with a peak of 3 patents in 2017.peak 32017: 3 patents20172018: 1 patents20182019: 1 patents20192021: 1 patents20212022: 2 patents20222023: 2 patents20232024: 2 patents20242025: 2 patents2025

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
12503583 Perfluoropolymer, liquid composition, polymer electrolyte membrane, membrane electrode assembly and polymer electrolyte fuel cell Takeshi Hirai, Chikaya Tamitsuji 2025-12-23
12187821 Fluorosulfonyl group-containing compound, fluorosulfonyl group-containing monomer, and their production methods Takeshi Hirai, Chikaya Tamitsuji 2025-01-07
12098226 Polymer, method for producing polymer, and method for producing membrane Takeshi Hirai, Chikaya Tamitsuji, Takumi Okuyama 2024-09-24
11898018 Liquid composition, polymer electrolyte membrane, membrane electrode assembly and polymer electrolyte fuel cell Takumi Okuyama, Takeshi Hirai, Susumu Saito, Chikaya Tamitsuji 2024-02-13
11851508 Acid-type sulfonic acid group-containing polymer, liquid composition, polymer electrolyte membrane, membrane electrode assembly, polymer electrolyte fuel cell and ion exchange membrane for water electrolysis Takeshi Hirai, Susumu Saito, Hiroyuki Watabe, Chikaya Tamitsuji 2023-12-26
11840589 Perfluoropolymer, liquid composition, polymer electrolyte membrane, membrane electrode assembly and polymer electrolyte water electrolyzer Takeshi Hirai, Chikaya Tamitsuji 2023-12-12
11414502 Fluorosulfonyl group or sulfonic acid group-containing polymer, its production method and its application Takeshi Hirai, Chikaya Tamitsuji 2022-08-16
11242420 Fluorosulfonyl group-containing compound, fluorosulfonyl group-containing monomer, and their production methods Takeshi Hirai, Chikaya Tamitsuji 2022-02-08
10975053 Production methods for 1,3-dioxolane compound and perfluoro(2,2-dimethyl-1,3-dioxole) Yusuke TAKAHIRA, Nobuyuki Otozawa, Chikaya Tamitsuji 2021-04-13
10358400 Method for producing olefin containing chlorine and fluorine Yusuke TAKAHIRA 2019-07-23
9969890 Fluorinated ether compound, composition for forming hard coating layer, and article having hard coating layer Kiyotaka Takao, Nobuyuki Otozawa, Kuniko Okano, Taiki Hoshino 2018-05-15
9637650 Fluorinated ether compound, fluorinated ether composition and coating liquid, and substrate having surface-treated layer and method for its production Eisuke Murotani, Taiki Hoshino, Akira Isobe, Daisuke Shirakawa, Nobuyuki Otozawa 2017-05-02
9598345 Method for producing unsaturated acid ester or unsaturated acid Tomoyuki Fujita, Koichi Murata, Naoko Shirota, Yusuke Suzuki 2017-03-21
9540404 Fluorinated ether compound, fluorinated ether composition and coating liquid, and substrate having surface-treated layer and method for its production Eisuke Murotani, Taiki Hoshino, Akinobu Kunimoto, Nobuyuki Otozawa 2017-01-10

Frequent Collaborators

Chikaya Tamitsuji9 shared
Takeshi Hirai8 shared
Nobuyuki Otozawa4 shared
Taiki Hoshino3 shared
Susumu Saito2 shared
Eisuke Murotani2 shared

Nearby-Ranked Inventors

Ke PAN14
Naor Radami14
Jason Harris14
Gwangjae Jeon14
Masao Zen14
Yoshihiro YAMASAKI14
Sanjay Vakil14
Samuel Bartlett14
Taketoshi Okuno14