Title:
CUTTING TOOL, AND METHOD FOR MANUFACTURING OPTICAL FIBER BASE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2020/196104
Kind Code:
A1
Abstract:
This cutting tool (40) comprises a shank part (41), and a cutting part (42) provided to one end of the shank part (41). The cutting part (42) has a first region (51) provided to one end of the cutting tool (40), and a second region (52) positioned closer to the center of the cutting tool (40) than is the first region (51). Abrasive grains are anchored to the first region (51) and the second region (52). The average grain diameter of the abrasive grains in the second region (52) is less than the average grain diameter of the abrasive grains in the first region (51).
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Inventors:
NAKANISHI TETSUYA (JP)
NAGASHIMA TAKUJI (JP)
NAGASHIMA TAKUJI (JP)
Application Number:
PCT/JP2020/011788
Publication Date:
October 01, 2020
Filing Date:
March 17, 2020
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
B24D7/14; B24B5/40; B24D3/00; B24D5/14; C03B37/012
Foreign References:
JPS5641953Y2 | 1981-10-01 | |||
JP2014159348A | 2014-09-04 | |||
JPH02117861U | 1990-09-20 |
Attorney, Agent or Firm:
SHIN-EI PATENT FIRM, P.C. (JP)
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