Tetsuo Ejiri has been granted 7 US patents while listed as an inventor at Kureha . The first was granted in 2003 and the most recent in December 2018. Tetsuo Ejiri ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Tetsuo Ejiri in Tokyo, JP.
Patents per Year Patents granted per year, 2003 to 2018 Bar chart with a peak of 2 patents in 2018. peak 2 2003: 1 patents 2003 2004: 1 patents 2004 2011: 1 patents 2011 2014: 1 patents 2014 2017: 1 patents 2017 2018: 2 patents 2018
Issued Patents All Time
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Showing 1–7 of 7 patents
Patent # Title Co-Inventors Date
10150849 Thermally-expandable microspheres, and composition and molded article containing same Yasuhiro Suzuki , Naoko Kuriu , Shintaro Nomura , Shunzo Endo 2018-12-11
10093782 Thermally foamable microsphere, method of producing the same, and use thereof — 2018-10-09
9605125 Thermally foamable microsphere, method of producing the same, and use thereof — 2017-03-28
8759410 Thermally foamable microsphere, method of producing the same, and use thereof — 2014-06-24
8058320 Thermally foamable microsphere, production method thereof, use thereof, composition containing the same, and article Mitsuhiro Matsuzaki , Shunzo Endo 2011-11-15
6693204 Method for purification of cyclic ester Kazuyuki Yamane , Kentaro Otawara 2004-02-17
6613810 Expandable microspheres and process for producing the same Genzo Asai , Yoshikatsu Satake 2003-09-02