HY

Hirotaka Yamasaki

IC Idemitsu Kosan Co.: 6 patents #239 of 1,237Top 20%
Overall (All Time): #861,389 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
8557751 Lubricant composition Motoharu Ishikawa 2013-10-15
6261474 Lubricating oil for compression-type refrigerators containing pentafluoroethane and a polyvinyl ether Tatsuya Egawa, Kenji Mogami, Satoshi Nagao, Toyokazu Handa, Masato Kaneko 2001-07-17
6087539 Process for producing an ether compound Akihisa Ogawa, Shigeru Kamimori, Yoshikazu Hirao, Keiji Fujita, Tokuyuki Yoshimoto 2000-07-11
5326488 Mannich reaction product and process for producing the same and use of the product Tomiyasu Minokami, Hiroaki Koshima, Masahisa Gotoh 1994-07-05
5239107 Process for producing polycyanoaryl ether powder Jitsuo Shinoda, Toshiharu Takizawa 1993-08-24
4959487 Process for producing aromatic nitrile Yoshio Hironaka 1990-09-25