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:
May. 10, 2005
Filed:
Dec. 10, 2002
Yukitoshi Inui, Aichi, JP;
Kuniyoshi Kondo, Aichi, JP;
Tatsuya Yamashita, Aichi, JP;
Akari Kawasaki, Aichi, JP;
Manabu Kagami, Aichi, JP;
Hiroshi Ito, Aichi, JP;
Shin Sato, Tokyo, JP;
Eiichi Okazaki, Tokyo, JP;
Yukitoshi Inui, Aichi, JP;
Kuniyoshi Kondo, Aichi, JP;
Tatsuya Yamashita, Aichi, JP;
Akari Kawasaki, Aichi, JP;
Manabu Kagami, Aichi, JP;
Hiroshi Ito, Aichi, JP;
Shin Sato, Tokyo, JP;
Eiichi Okazaki, Tokyo, JP;
Toyoda Gosei Co., Ltd., Aichi, JP;
Abstract
Into a mixture solutionof a high-refractive-index photo-curable resin A and a low-refractive-index photo-curable resin B, light capable of curing only the resin A is led through an optical fiberso that a cured resinof the resin A having a diameter substantially equal to the diameter of a core portion of the optical fiber is formed so as to extend from a tip of the optical fiber. Then, the residual mixture solutionis cured. In this manner, a module having the previously cured high-refractive-index resinas an optical waveguide can be formed easily. On this occasion, the mixed state of the mixture solutioncan be kept good enough to facilitate the formation of the high-refractive-index resinwhen the solubility parameter δof the high-refractive-index photo-curable resin A and the solubility parameter δand volume fraction Φof the low-refractive-index photo-curable resin B satisfy the following expression (4).|δ−δ|<−7.5Φ+6.0  (4)