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:
Oct. 15, 2019
Filed:
Jul. 13, 2016
Applicants:
Hiroshi Iwata, Kanagawa, JP;
Tatsuya Niimi, Kanagawa, JP;
Yoshihiro Norikane, Kanagawa, JP;
Takashi Matsumura, Kanagawa, JP;
Inventors:
Hiroshi Iwata, Kanagawa, JP;
Tatsuya Niimi, Kanagawa, JP;
Yoshihiro Norikane, Kanagawa, JP;
Takashi Matsumura, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B33Y 70/00 (2015.01); B29C 64/112 (2017.01); C08K 5/053 (2006.01); C08K 5/05 (2006.01); B29C 64/40 (2017.01); B33Y 10/00 (2015.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B33Y 70/00 (2014.12); B29C 64/112 (2017.08); C08K 5/05 (2013.01); C08K 5/053 (2013.01); B29C 64/40 (2017.08); B29L 2031/7532 (2013.01); B33Y 10/00 (2014.12);
Abstract
A hydrogel object includes a polymer and water, wherein the rate of mass loss is not greater than 20 percent by mass when the hydrogel object is left undone for one week at 25 degrees C. and relative humidity of 50 percent.