Patents by Inventor Etsuji Akimaru

Etsuji Akimaru has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Coating composition for golf ball and golf ball using the same
    Patent number: 6063859
    Abstract: A coating composition for a golf ball which comprises a non-yellowing polyisocyanate and a hydroxyl group-containing polyester obtained by reacting a polyhydric alcohol, at least a part of which has an alicyclic structure in the molecule, with a polybasic acid component, and a golf ball whose body is coated with the above coating composition. When said coating composition is used, a high durability is achieved even when a white enamel coating is omitted from the lower layer part of the coating and the coating step can be shortened.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: May 16, 2000
    Assignees: Cashew Co., Ltd., Bridgestone Sports Co., Ltd.
    Inventors: Shuichi Yamamoto, Etsuji Akimaru, Shigeru Noguchi, Takashi Ohira, Hiroto Sasaki, Susumu Muta