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. 08, 2012
Filed:
Jul. 23, 2008
Takashi Kobayashi, Tochigi-ken, JP;
Akihiro Nemoto, Tochigi-ken, JP;
Hiroaki Yamagishi, Utsunomiya, JP;
Katsuyuki Nakajima, Utsunomiya, JP;
Takashi Kobayashi, Tochigi-ken, JP;
Akihiro Nemoto, Tochigi-ken, JP;
Hiroaki Yamagishi, Utsunomiya, JP;
Katsuyuki Nakajima, Utsunomiya, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A perforation method and an perforation apparatus in which a hollow member of a fuel injection nozzle is filled with a filler such as a zirconia ball, and a laser light is applied to the hollow member to form an injection hole while vibrating the zirconia ball using an ultrasonic vibrator. After the injection hole is formed, the laser light is introduced through the injection hole to the inside of the fuel injection nozzle, and thereby is applied to the vibrated zirconia ball.