Method for molding disc substrate

Details Method for molding disc substrate Method for molding disc substrate

2006-01-05

2009-12-15

Vargot, Mathieu D. (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Light polarizing article or holographic article

C264S002500

Reexamination Certificate

active

07632429

ABSTRACT:
Preventing a molded disc substrate from generating a separation pattern. To this end, a molding die1includes a pair of stationary die6and movable die7, and an outer circumference ring16for molding an outer circumference end of the disc substrate2. The outer circumference ring16is so mounted as to be movable along forward and backward directions in parallel with a moving direction of the movable die7toward the stationary die6, and has a retaining surface39for retaining the outer circumference of the molded disc substrate2.

REFERENCES:
patent: 4118168 (1978-10-01), Rees et al.
patent: 5018962 (1991-05-01), Kitamura et al.
patent: 5171585 (1992-12-01), Onisawa et al.
patent: 5427520 (1995-06-01), Shimizu et al.
patent: 0 338 906 (1989-10-01), None
patent: 08-90613 (1996-04-01), None
patent: 09-123229 (1997-05-01), None
Patent Abstracts of Japan, vol. 1997, No. 9, Sep. 30, 1997 and JP 09 123229 A (Sony Corp.), May 13, 1997.
Patent Abstracts of Japan, vol. 1996, No. 08, Aug. 30, 1996 and JP 08 090613 A (Taiyo Yuden Co. LTD), Apr. 9, 1996.

Affiliated with

Also associated with

Rating

Method for molding disc substrate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for molding disc substrate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for molding disc substrate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4058304