Manufacturing method for battery case lid including explosion-proof valve

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9287539
APP PUB NO 20130196188A1
SERIAL NO

13879363

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Abstract

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Provided is a battery case lid (1) formed by working a metal plate, including: a substrate section (2) and an explosion-proof valve (4) formed in the substrate section (2), wherein the explosion-proof valve (4) has a reduced thickness section (41) thinner than the substrate section (2), and the reduced thickness section (41) is formed by extending the metal plate by applying pressure while the metal plate is kept unrestrained.

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Patent Owner(s)

Patent OwnerAddress
NIPPON LIGHT METAL COMPANY LTD2-20 HIGASHI-SHINAGAWA 2-CHOME SHINAGAWA-KU TOKYO 140-8628
SOODE NAGANO CO LTD5-21 OSACHIKATAMA-CHO 2-CHOME OKAYA-SHI NAGANO 394-0084

International Classification(s)

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  • 2011 Application Filing Year
  • B21K Class
  • 199 Applications Filed
  • 106 Patents Issued To-Date
  • 53.27 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201120122013201420152016201720182019202020210255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kobayashi, Masato Niigata, JP 247 2767
Nomura, Shinichi Tokyo, JP 37 496
Sode, Takayuki Okaya, JP 11 44
Sugiyama, Yukinori Okaya, JP 12 77

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Patent Citation Ranking

  • 4 Citation Count
  • B21K Class
  • 29.47 % this patent is cited more than
  • 9 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges28615101 - 1011 - 2021 - 3005101520253035404550556065

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