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 7660051 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 09, 2010

Filed:

Sep. 30, 2004
Applicants:

Osamu Asai, Tokyo, JP;

Yoshimitsu Gomi, Tokyo, JP;

Hatsuyoshi Nakazawa, Tokyo, JP;

Manabu Tsurumi, Tokyo, JP;

Inventors:

Osamu Asai, Tokyo, JP;

Yoshimitsu Gomi, Tokyo, JP;

Hatsuyoshi Nakazawa, Tokyo, JP;

Manabu Tsurumi, Tokyo, JP;

Assignee:

Hoya Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 9/00 (2006.01); G02B 7/02 (2006.01); B29D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A protective film () is eccentrically adhered to a concave-side transfer surface () of a first mold () which is used in a plastic lens forming mold, and part () of the peripheral portion of the protective film is projected laterally from the mold (). The protective film () comprises a film layer with an outer diameter smaller than that of the first mold (), and an adhesive layer with a relatively low adhesive strength which is formed on one surface of the film layer.


Find Patent Forward Citations

Asai, Osamu. (2010). Optical lens base with protective film and process for producing optical lens base (U.S. Patent No. 7660051). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7660051

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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