US 11,794,330 B2
Hammer
Kazuhiro Kawaguchi, Yamaguchi (JP)
Assigned to TOKUYAMA CORPORATION
Appl. No. 16/970,289
Filed by TOKUYAMA CORPORATION, Yamaguchi (JP)
PCT Filed Feb. 20, 2019, PCT No. PCT/JP2019/006403
§ 371(c)(1), (2) Date Aug. 14, 2020,
PCT Pub. No. WO2019/167767, PCT Pub. Date Sep. 6, 2019.
Claims priority of application No. 2018-033561 (JP), filed on Feb. 27, 2018.
Prior Publication US 2021/0078155 A1, Mar. 18, 2021
Int. Cl. B25G 1/10 (2006.01); B25D 1/00 (2006.01); B25G 1/02 (2006.01); B28D 5/00 (2006.01); C01B 33/035 (2006.01); B25G 3/30 (2006.01)
CPC B25G 1/10 (2013.01) [B25D 1/00 (2013.01); B25G 1/02 (2013.01); B28D 5/0005 (2013.01); C01B 33/035 (2013.01); B25G 3/30 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A hammer for crushing a silicon block so as to carry out shape processing with respect to the silicon block,
said hammer comprising:
a handle made up of a single resin layer; and
a hammer head fixed to the handle,
a resin of the resin layer containing no inorganic filler, and
the handle having a Rockwell hardness of not less than R 110 and not more than R 130.