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:
Feb. 06, 2007
Filed:
Apr. 12, 2002
Applicants:
Takeshi Kitamura, Kyoto, JP;
Yasukazu Kondo, Kyoto, JP;
Inventors:
Takeshi Kitamura, Kyoto, JP;
Yasukazu Kondo, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/1333 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
Abstract
A pinprovided at a hornfor ultrasonic welding is press-fitted to the depth reaching the light guide platebreaking through the various kind of sheetsandfrom surface side thereof. Another embodiment of the invention is that pinsconstructed so as to break through various kind of sheetsandon the surface of the plate are provided on the light guide plateand the various kind of sheetsandare fixed on the light guide plateby distorting by caulking using ultrasonic vibration of the tip end of the pin.