Invention Grant
- Patent Title: Stick of string instrument bow, string instrument bow and methods of manufacturing stick of string instrument bow
- Patent Title (中): 琴弦乐器弓，琴弦乐器弓和弦乐器琴弓制作方法
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Application No.: US13080624Application Date: 2011-04-05
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Publication No.: US08383921B2Publication Date: 2013-02-26
- Inventor: Akio Yamamoto , Hiroshi Nakaya , Tatsuya Hiraku , Toshiharu Fukushima
- Applicant: Akio Yamamoto , Hiroshi Nakaya , Tatsuya Hiraku , Toshiharu Fukushima
- Applicant Address: JP Hamamatsu-Shi
- Assignee: Yamaha Corporation
- Current Assignee: Yamaha Corporation
- Current Assignee Address: JP Hamamatsu-Shi
- Agency: Dickstein Shapiro LLP
- Priority: JP2010-88760 20100407
- Main IPC: G10D3/16
- IPC: G10D3/16
Abstract:
A stick of a string instrument bow includes a base material having an arched-rod shaped carbon fiber resin layer made of carbon fiber resin and a glass fiber resin layer which covers the outer surface of the carbon fiber resin layer and is made of glass fiber resin, and the glass fiber resin layer has a non-adhesion portion formed of an air layer present within the glass fiber resin layer and an adhesion portion which does not include the air layer.
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