LIGHT-BLOCKING MEMBER - KYOCERA CORP

Title:

LIGHT-BLOCKING MEMBER

Document Type and Number:

WIPO Patent Application WO/2020/032034

Kind Code:

A1

Abstract:

This light-blocking member is formed from an aluminum oxide-based ceramic containing an oxide of titanium represented by the composition formula TiO2-x(1 ≤ x <2). The total content of Fe, Ni, Co, Mn, and Cr is 260 mass ppm or less.

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Inventors:

KIYOTA SATOSHI (JP)
WATADA KAZUO (JP)
HIGA TAKEHISA (JP)
SHINGU MASAMICHI (JP)
SHIKATA KUNIHIDE (JP)

Application Number:

PCT/JP2019/030931

Publication Date:

February 13, 2020

Filing Date:

August 06, 2019

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Assignee:

KYOCERA CORP (JP)

International Classes:

C04B35/117; G02B5/00

Domestic Patent References:

WO2018139673A1

2018-08-02

Foreign References:

JP2016176988A	2016-10-06
JP2000327405A	2000-11-28
JP2006182595A	2006-07-13
JP2018142462A	2018-09-13

Attorney, Agent or Firm:

BUNA PATENT ATTORNEYS (JP)

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