HK

Hiroaki Koyama

ML Mitsubishi Pencil Company, Limited: 10 patents #24 of 302Top 8%
KL Kanebo, Limited: 8 patents #10 of 571Top 2%
NK Nippon Kayaku: 4 patents #176 of 1,103Top 20%
Honda Motor Co.: 3 patents #6,619 of 21,052Top 35%
TC Toppan Printing Co.: 3 patents #268 of 1,467Top 20%
MC Mitsubishi Chemical: 2 patents #163 of 716Top 25%
MK Mitsubishi Pencil Kabushikikaisha: 1 patents #15 of 34Top 45%
📍 Fujioka, JP: #4 of 89 inventorsTop 5%
Overall (All Time): #117,511 of 4,157,543Top 3%
31
Patents All Time

Issued Patents All Time

Showing 26–31 of 31 patents

Patent #TitleCo-InventorsDate
4466932 Process for producing carbon articles Shigeo Shimizu 1984-08-21
4460730 Composition containing a powder of an inorganic material Shigeo Shimizu 1984-07-17
4454298 Granular or powdery phenol-aldehyde resin and process for production thereof Shigeo Shimizu 1984-06-12
4414378 Granular or powdery phenol-formaldehyde resin and process for production thereof Shigeo Shimizu 1983-11-08
4414379 Granular or powdery nitrogen-containing phenol-aldehyde copolymer resin and process for production thereof Shigeo Shimizu 1983-11-08
4316969 Cured novolak fiber-reinforced, chlorinated rubber molded articles having excellent flame-proofness, and process for the preparation thereof Shigeo Shimizu, Mituru Sekiya 1982-02-23