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:
Apr. 14, 2025
Filed:
Nov. 11, 2021
Applicant:
Ricoh Company, Ltd., Tokyo, JP;
Inventors:
Tadahiko Morinaga, Kanagawa, JP;
Tatsuru Moritani, Kanagawa, JP;
Tatsuki Yamaguchi, Kanagawa, JP;
Masaru Ohgaki, Kanagawa, JP;
Shinji Aoki, Kanagawa, JP;
Yuichi Sato, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/16 (2005.12); B01J 2/04 (2005.12); B01J 2/18 (2005.12); C08G 63/06 (2005.12); A61K 9/51 (2005.12); B29B 9/10 (2005.12); B29B 9/12 (2005.12);
U.S. Cl.
CPC ...
A61K 9/1647 (2012.12); B01J 2/04 (2012.12); B01J 2/18 (2012.12); C08G 63/06 (2012.12); A61K 9/5153 (2012.12); A61K 9/5192 (2012.12); B29B 9/10 (2012.12); B29B 9/12 (2012.12); B29B 2009/125 (2012.12);
Abstract
A particulate poly(lactic-co-glycolic) acid (PLGA) is provided. The particulate PLGA comprises a poly(lactic-co-glycolic) acid (PLGA), and has an average volume-based panicle diameter of 80 nm or less and a relative span factor (R.S.F.) satisfying the following formula (1):0<.≤1.20 Formula (1)