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:
Sep. 24, 2002
Filed:
Oct. 10, 2000
Applicant:
Inventor:
Seishi Izumi, Kanagawa, JP;
Assignee:
Kabushiki Kaisha Pilot, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B43K 7/08 ;
U.S. Cl.
CPC ...
B43K 7/08 ;
Abstract
An ink follower for a writing tool comprises a swollen gel formed from an oil-absorbable resin and a base oil, i.e., a hardly volatile liquid and/or a nonvolatile liquid. The ink follower is arranged in contact with the ink surface of a writing tool such as a pen. A writing tool using the ink follower has excellent impact resistance without causing insufficient following and oil separation with the passage of time and with no occurrence of inconvenience in writing.
Izumi, Seishi. (2002). Ink follower in conjunction with ink in a writing instrument and writing instrument containing the same (U.S. Patent No. 6454481). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6454481
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile