Inventor · disambiguated record
Yoshihito Koyama
Also filed as: KOYAMA YOSHIHITO
7 granted patents·8 pending applications·2 citations·filing 2014–2023
72Inventor score
Top patents by PatentIndex Score
15 records- 0182US11505655B2Modified lignin manufacturing method, modified lignin, and modified lignin-including resin composition materialIDEMITSU KOSAN CO·Filed 2018·Granted Nov 22, 2022·1 cites·12 claims
- 0280US11518886B2Modified lignin, modified polyphenol manufacturing method, and modified lignin-including resin composition materialIDEMITSU KOSAN CO·Filed 2018·Granted Dec 6, 2022·1 cites·6 claims
- 0375US2023025187A1Modified lignin, modified polyphenol manufacturing method, and modified lignin-including resin composition materialIDEMITSU KOSAN CO·Filed 2022·Application pending·0 cites
- 0474US2022348725A1Modified lignin manufacturing method, modified lignin, and modified lignin-including resin composition materialIDEMITSU KOSAN CO·Filed 2022·Application pending·0 cites
- 0564US2025171315A1Composition for producing activated carbon, method for producing same, molded body for producing activated carbon, method for producing same, fibers for producing activated carbon fibers, method for producing same, activated carbon precursor, activated carbon fiber precursor, carbide, carbon fibers, activated carbon, method for producing same, activated carbon fibers, and method for producing sameGUN EI CHEMICAL IND CO LTD·Filed 2023·Application pending·0 cites
- 0658US12325775B2Method for producing polyphenol derivative, polyphenol derivative, and polyphenol derivative-containing resin composition materialIDEMITSU KOSAN CO·Filed 2020·Granted Jun 10, 2025·0 cites·13 claims
- 0758US9951189B2Method for manufacturing lignin degradation productIDEMITSU KOSAN CO·Filed 2014·Granted Apr 24, 2018·0 cites·4 claims
- 0856US10155853B2Method for manufacturing lignin degradation productIDEMITSU KOSAN CO·Filed 2017·Granted Dec 18, 2018·0 cites·4 claims
- 0955US11193022B2Method for producing lignin-containing resin composition and lignin-containing resin molded articleIDEMITSU KOSAN CO·Filed 2017·Granted Dec 7, 2021·0 cites·7 claims
- 1053US2024239947A1Thermosetting composition, polyurethane resin composition and polyurethane molded bodyIDEMITSU KOSAN CO·Filed 2022·Application pending·0 cites
- 1150US10450698B2Method for producing cellulose-containing solid material and method for producing glucoseIDEMITSU KOSAN CO·Filed 2016·Granted Oct 22, 2019·0 cites·8 claims
- 1247US2024010798A1Lignin composition and use thereofIDEMITSU KOSAN CO·Filed 2021·Application pending·0 cites
- 1340US2018179369A1Thermoplastic resin composition and method for producing thermoplastic resin compositionIDEMITSU KOSAN CO·Filed 2016·Application pending·0 cites
- 1439US2018215878A1Method for producing purified lignin, purified lignin, resin composition and molded bodyIDEMITSU KOSAN CO·Filed 2016·Application pending·0 cites
- 1537US2017275461A1Thermosetting resin compositionIDEMITSU KOSAN CO·Filed 2015·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Yoshihito Koyama files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →