HO

Hiroya Okumura

JC Japan Composite Co.: 3 patents #1 of 13Top 8%
TI Takeda Chemical Industries: 3 patents #379 of 1,420Top 30%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
Overall (All Time): #871,076 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
7604755 Electroconductive resin composition and separator for fuel cell Keizo Kimura, Shinji Tachibana, Takeshi Kusagaya 2009-10-20
7125623 Separator for solid polymer type fuel cell and process for producing the same Takashi Shibata 2006-10-24
6815053 Lowly heat-expandable laminate Tomoko Inoue, Isao Hirata, Shigehiro Okada 2004-11-09
5886205 Process for producing silicon-containing isocyanate compound Takashi Uchida, Takashi Shibata, Masaaki Sasaki 1999-03-23
5854313 Fine particles of high heat resistant polymer and epoxy esters Yoshimasa Omori, Takashi Shibata 1998-12-29
5756600 Urethane-modified epoxy vinyl ester resin Toshiaki Uchida, Koichi Akiyama, Kenichi Morita, Takashi Shibata 1998-05-26