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:
Nov. 18, 2025
Filed:
Feb. 17, 2023
National Center for Global Health and Medicine, Tokyo, JP;
Yasui Co., Ltd., Miyazaki, JP;
Yutaka Maruoka, Tokyo, JP;
Toshihisa Toyokuni, Hyogo, JP;
Mori Yokoyama, Hyogo, JP;
Kei Oomoto, Tokyo, JP;
Go Aradono, Miyazaki, JP;
JAPAN INSTITUTE FOR HEALTH SECURITY, Tokyo, JP;
YASUI CO., LTD., Miyazaki, JP;
Abstract
A surgical ink is suitable for medical devices that ensure safety in accordance with the sterilization validation and can be widely distributed on the market, and has biocompatibility and writing property, and a surgical pen has good writing convenience. A surgical pen having radiation resistance includes: a cylindrical shaft body portion having a storage part for a surgical ink; and a pen tip portion for discharging the ink at a distal end of the shaft body portion, and the pen tip portion is made of a synthetic resin, and has a bending strength of 1.0 N or more after irradiation with γ-rays of 25 kGy to 70 kGy.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile