HY

Hiroshi Yokoyama

AK Asahi Kasei Kabushiki Kaisha: 1 patents #17 of 154Top 15%
HI Hitachi: 1 patents #1,533 of 3,950Top 40%
KA Kaneka: 1 patents #73 of 189Top 40%
Ricoh Company: 1 patents #186 of 609Top 35%
📍 Ebina, OH: #1 of 1 inventorsTop 100%
Overall (2002): #15,616 of 266,432Top 6%
4
Patents 2002

Issued Patents 2002

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6498314 Vacuum switch and vacuum switchgear using the same Takuya Miyo, Toru Tanimizu, Syuuichi Kikukawa, Katunori Kojima, Ayumu Morita +2 more 2002-12-24
6465099 Vinyl chloride fiber and process of producing the same Kazumasa Yamane, Yuji Kubo, Ikuo Okino 2002-10-15
6388049 Low-molecular weight oxymethylene polymer and composition thereof Yukihiro Ban 2002-05-14
6340810 Device with induction heating roller including projecting portions at both ends and a central portion of a bobbin for maintaining a gap between an inner surface of the heating roller and a coil on the bobbin Toshiaki Higaya 2002-01-22