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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.:

US 11141887 B1

PDFFull Text
Date of Patent:
Oct. 12, 2021

Filed:

Oct. 31, 2018

Production method of mold having recessed pattern, and manufacturing method of pattern sheet

Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventors:

Shotaro Ogawa, Kanagawa, JP;

Toshihiro Usa, Kanagawa, JP;

Kenichiro Tamaki, Kanagawa, JP;

Assignee:

FUJIFILM Corporation, Tokyo, JP;

Attorney:

JCIPRNET

Primary Examiner:

Jacob T Minskey

Assistant Examiner:

Virak Nguon

Int. Cl.
CPC ...
B29C 33/38 (2006.01); B29C 59/02 (2006.01); B29C 45/17 (2006.01); B29C 45/37 (2006.01); A61M 37/00 (2006.01); B29L 31/00 (2006.01); C25D 1/10 (2006.01); B29C 33/40 (2006.01); B29C 33/00 (2006.01); B29C 33/20 (2006.01);
U.S. Cl.
CPC ...
B29C 33/3807 (2013.01); A61M 37/0015 (2013.01); B29C 33/3842 (2013.01); B29C 33/3857 (2013.01); B29C 45/1742 (2013.01); B29C 45/372 (2013.01); B29C 59/02 (2013.01); A61M 2037/0046 (2013.01); A61M 2037/0053 (2013.01); B29C 33/0011 (2013.01); B29C 33/20 (2013.01); B29C 33/405 (2013.01); B29L 2031/756 (2013.01); B29L 2031/7544 (2013.01); C25D 1/10 (2013.01);
Abstract

Provided are a production method of a mold having a recessed pattern, and a manufacturing method of a pattern sheet having good accuracy and excellent productivity. The production method of a mold includes: a step of preparing an electroform having a protruding pattern and a mold having a first mold and a second mold forming a cavity; a step of fixing the electroform excluding an end portion of the electroform to the first mold; a clamping step of clamping the electroform excluding the end portion of the electroform and a region of the protruding pattern between the first mold and the second mold to form the cavity; and an injection step of filling the cavity with a resin.

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