The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 2021
Filed:
Jan. 24, 2020
Applicant:
Nalux Co., Ltd., Osaka, JP;
Inventors:
Kazuya Yamamoto, Osaka, JP;
Tatsuya Murayama, Osaka, JP;
Yukinobu Nishio, Osaka, JP;
Kayoko Fujimura, Osaka, JP;
Assignee:
NALUX CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B 11/08 (2006.01);
U.S. Cl.
CPC ...
C03B 11/082 (2013.01); C03B 11/086 (2013.01); C03B 2215/11 (2013.01); C03B 2215/412 (2013.01);
Abstract
Provided is a mold manufacturing method that is capable of manufacturing a mold of a complex shape particularly of an optical element with sufficient shape accuracy and within a relatively short time. This mold manufacturing method includes: a step for forming a base made of metal into a first shape through machining; a step for coating the base with a resin layer; a step for forming the resin layer into a second shape; and a step for forming the base into a third shape through dry-etching.