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:
Apr. 04, 2023
Nitto Boseki Co., Ltd., Fukushima, JP;
Ryo Nishikubo, Koriyama, JP;
Tatsuya Komukai, Koriyama, JP;
Tadashi Kurita, Koriyama, JP;
Koichi Nakamura, Koriyama, JP;
Takashi Nonaka, Koriyama, JP;
Nitto Boseki Co., Ltd., Fukushima, JP;
Abstract
A glass composition for glass fibers including 50.0 to 70.0% by mass of SiO, 10.0 to 30.0% by mass of AlO, 8.0 to 25.0% by mass of ZnO, 0.0 to 8.0% by mass of MgO, 0.0 to 5.0% by mass of CaO, 0.0 to 8.0% by mass of PO, 0.0 to 2.5% by mass of TiO, and 0.0% by mass or more and less than 1.0% by mass in total of LiO, NaO, and KO, and when the contents of SiO, AlO, ZnO, MgO, CaO, and POare defined as S, A, Z, M, C, and P, respectively, (M+C)/Z is 0.46 or less and the S, A, and P satisfy the following formula (1-1): 28.0≤{(S−P)×(A−P)}≤36.9 . . . (1-1).