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:
Mar. 27, 2001
Filed:
Jun. 16, 1999
Applicant:
Inventors:
Kiyoshi Yamamoto, Tokyo, JP;
Masayuki Sugiura, Saitama-ken, JP;
Taichi Nakanishi, Saitama-ken, JP;
Takashi Tohara, Tochigi-ken, JP;
Masato Hara, Tokyo, JP;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 7/02 ;
U.S. Cl.
CPC ...
G02B 7/02 ;
Abstract
A holder is constructed of a cylindrical member made of a metal and an inward flange member made of a diffusion transparent member. The inside of the cylindrical member is sectioned into a tapered area whose inside diameter decreases downward, and a small-diameter cylindrical area and a large-diameter cylindrical area. The inward flange member is bonded to the bottom end of the small-diameter cylindrical area.