US 11,840,003 B2
Molded resin product, method for manufacturing molded resin product, mold, and apparatus for manufacturing molded resin product
Toshimitsu Nagoya, Kanagawa (JP); Kei Oikawa, Kanagawa (JP); Makoto Kojima, Kanagawa (JP); Takahiro Suzuki, Tokyo (JP); and Mao Mukaida, Saitama (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Mar. 29, 2021, as Appl. No. 17/216,393.
Claims priority of application No. 2020-069412 (JP), filed on Apr. 7, 2020.
Prior Publication US 2021/0308917 A1, Oct. 7, 2021
Int. Cl. B29C 45/26 (2006.01); B29C 45/02 (2006.01); B29L 31/00 (2006.01)
CPC B29C 45/263 (2013.01) [B29C 45/02 (2013.01); B29K 2995/0094 (2013.01); B29L 2031/722 (2013.01); B29L 2031/764 (2013.01); B29L 2031/767 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A molded resin product comprising:
a plurality of protrusions formed in a predetermined region,
wherein a histogram indicating a height distribution of the plurality of protrusions has two peaks having a boundary height as a boundary there between, and
wherein the plurality of protrusions includes first protrusions and second protrusions, the first protrusions having height equal to or smaller than the boundary height, the second protrusions having height larger than the boundary height, and
wherein an arithmetic mean curvature of the first protrusions is smaller than an arithmetic mean curvature of the second protrusions.