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

Munehito Funaya — 15 Patents

MCMitsui Chemicals: 14 patents #76 of 2,279Top 4%
JPJapan Polypropylene: 1 patents #56 of 95Top 60%
Shimabara, JP: #110 of 395 inventorsTop 30%
Overall (All Time): #307,048 of 4,157,543Top 8%
15 Patents All Time
Munehito Funaya has been granted 15 US patents while listed as an inventor at Mitsui Chemicals. The first was granted in 2007 and the most recent in September 2025. Munehito Funaya ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Munehito Funaya in Shimabara, JP.

Patents per Year

Patents granted per year, 2007 to 2025Bar chart with a peak of 3 patents in 2010.peak 32007: 1 patents20072008: 1 patents2009: 1 patents20092010: 3 patents2011: 1 patents20112013: 1 patents2016: 2 patents20162017: 1 patents2018: 1 patents20182019: 2 patents2025: 1 patents2025

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12404353 Olefin polymerization catalyst, olefin polymerization catalyst production method, and olefin polymer production method using the olefin polymerization catalyst Ryota Fujita 2025-09-02
10336837 Process for producing olefin polymer and olefin polymer Atsushi Sakuma, Ikuko Ebisawa, Shinsuke Kinoshita, Akiko Matsumoto, Hirokazu Tanaka +1 more 2019-07-02
10336838 Process for producing olefin polymer and olefin polymer Atsushi Sakuma, Ikuko Ebisawa, Shinsuke Kinoshita, Akiko Matsumoto, Hirokazu Tanaka +1 more 2019-07-02
9896526 Process for producing olefin polymer and olefin polymer Atsushi Sakuma, Ikuko Ebisawa, Shinsuke Kinoshita, Akiko Matsumoto, Hirokazu Tanaka +1 more 2018-02-20
9796799 Transition metal compound, olefin polymerization catalyst, and olefin polymer production process 2017-10-24
9458257 Process for producing olefin polymer and olefin polymer Atsushi Sakuma, Ikuko Ebisawa, Shinsuke Kinoshita, Akiko Matsumoto, Hirokazu Tanaka +1 more 2016-10-04
9458261 Transition metal compound, olefin polymerization catalyst, and olefin polymer production process 2016-10-04
8409480 Process for preparing organic alkali metal compound and organic transition metal compound Atsushi Sakuma 2013-04-02
7879960 Process for producing propylene polymer Naritoshi Hirota, Mayumi Hiwara, Yasushi Tohi, Koji Kawai, Ryoji Mori +3 more 2011-02-01 $772,000
7834204 Fluorene derivative, transition metal compound, catalyst for olefin polymerization, and process for producing olefin polymer Koji Endo, Naritoshi Hirota, Yuichi Yamamura, Koji Kawai 2010-11-16 $1,347,000
7803888 Olefin-based polymers and uses thereof Nobuo Kawahara, Shinichi Kojoh, Shingo Matsuo, Hideyuki Kaneko, Tomoaki Matsugi +7 more 2010-09-28 $1,458,000
7678934 Propylene copolymer, polypropylene composition and uses thereof, transition metal compound and olefin polymerization catalyst Naritoshi Hirota, Hiromu Kaneyoshi, Koji Kawai, Nobuo Kawahara 2010-03-16 $1,239,000
7488789 Propylene copolymer, polypropylene composition, and uses thereof, transition metal compounds and catalyst for olefin polymerization Shigenobu Ikenaga, Keiji Okada, Hiroshi Hoya, Norihide Inoue, Naritoshi Hirota +6 more 2009-02-10 $724,000
7396900 Thiourethane-based optical material Mamoru Tanaka, Shigetoshi Kuma, Seiichi Kobayashi 2008-07-08 $1,899,000
7244808 Thiourethane-based optical material Mamoru Tanaka, Shigetoshi Kuma, Seiichi Kobayashi 2007-07-17 $245,000