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:
Jan. 03, 2017
Filed:
Sep. 04, 2014
Mitsubishi Pencil Company, Limited, Tokyo, JP;
Yoshihisa Osano, Yokohama, JP;
Yoshihide Ishii, Yokohama, JP;
Misao Ooyama, Yokohama, JP;
Saki Hanatani, Fujioka, JP;
MITSUBISHI PENCIL COMPANY, LIMITED, Tokyo, JP;
Abstract
A ballpoint penincludes: a ballpoint pen tiphaving a writing balland a holderholding the writing ball; a shaft tubeto which the rear end part of the ballpoint pen tipis mounted; and inkaccommodated in the shaft tube. The holderhas an ink guiding holeformed from the rear end thereof toward the head end thereof and a ball houseformed with the inner circumference near the head end of the holderexpanded. The writing ballis formed of a zirconia sintered body with the content of an aluminum element being less than 0.1 weight %, and the inkcontains inorganic particles
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile