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. 26, 2021
Filed:
Mar. 26, 2020
The Furukawa Battery Co., Ltd., Yokohama, JP;
Yutaro Kawaguchi, Iwaki, JP;
Yusuke Ogino, Iwaki, JP;
Atsushi Sato, Iwaki, JP;
Shinya Suge, Iwaki, JP;
Katsuya Nukui, Iwaki, JP;
Akihiro Nishimura, Iwaki, JP;
Koshin Takemoto, Iwaki, JP;
Ryo Tainaka, Iwaki, JP;
Masashi Matsushita, Iwaki, JP;
Hideki Hagihara, Iwaki, JP;
Masaki Shimotsuya, Iwaki, JP;
Jun Furukawa, Iwaki, JP;
The Furukawa Battery Co., Ltd., Iwaki, JP;
Abstract
A positive electrode grid body for lead-acid battery includes frame rib including first and second lateral frame ribs and first and second longitudinal frame ribs, an inner rib including a plurality of lateral and longitudinal crosspieces, a plurality of opening portions, and a positive electrode current collection lug connected to the first lateral frame rib. In a region having a length of at least one opening portion or more in the lateral direction of the lateral crosspieces from the first longitudinal frame rib, a cross-sectional area of the plurality of lateral crosspieces located on at least the first lateral frame rib side becomes larger from the second longitudinal frame rib side toward a portion connected to the first longitudinal frame rib.