P

Inventor

KURACHI JUNJI

JP35 patents
⚠️ This page may combine multiple inventors who share the name “KURACHI JUNJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON SHEET GLASS CO LTD

27 patents
US6440531B1Aug 27, 2002

Hydrofluoric acid etched substrate for information recording medium

NIPPON SHEET GLASS CO LTD70 citations96
US6399527B1Jun 4, 2002

Glass composition and substrate for information recording medium

NIPPON SHEET GLASS CO LTD57 citations96
US6376403B1Apr 23, 2002

Glass composition and process for producing the same

NIPPON SHEET GLASS CO LTD69 citations96
US6333286B1Dec 25, 2001

Glass composition and substrate for information recording media comprising the same

NIPPON SHEET GLASS CO LTD66 citations96
US6306786B1Oct 23, 2001

Glass composition and process for producing the same

NIPPON SHEET GLASS CO LTD81 citations96
US6251812B1Jun 26, 2001

Glass composition and substrate for information recording media comprising the same

NIPPON SHEET GLASS CO LTD47 citations96
US7309671B2Dec 18, 2007

Glass composition, glass article, glass substrate for magnetic recording media, and method for producing the same

NIPPON SHEET GLASS CO LTD34 citations93
US6743529B2Jun 1, 2004

Process for producing glass substrate for magnetic recording medium and glass substrate for magnetic recording medium obtained by the same

NIPPON SHEET GLASS CO LTD48 citations92
US6576353B1Jun 10, 2003

Glass substrate for use as information recording medium and method of manufacturing such glass substrate

NIPPON SHEET GLASS CO LTD16 citations92
US6547980B1Apr 15, 2003

Glass substrate for information recording medium, manufacturing method thereof, and information recording medium

NIPPON SHEET GLASS CO LTD22 citations92
US6365534B1Apr 2, 2002

Glass composition and substrate for information recording media comprising the same

NIPPON SHEET GLASS CO LTD32 citations92
US6340647B1Jan 22, 2002

Glass composition and substrate for information recording media comprising the same

NIPPON SHEET GLASS CO LTD32 citations92
US7767607B2Aug 3, 2010

Glass composition, glass article, glass substrate for magnetic recording media, and method for producing the same

NIPPON SHEET GLASS CO LTD10 citations84
US7407889B2Aug 5, 2008

Method of manufacturing article having uneven surface

NIPPON SHEET GLASS CO LTD16 citations83
US10717670B2Jul 21, 2020

Glass for laser processing and method for producing perforated glass using same

NIPPON SHEET GLASS CO LTD10 citations82
US9764980B2Sep 19, 2017

Glass composition, glass composition for chemical strengthening, strengthened glass article, and cover glass for display

NIPPON SHEET GLASS CO LTD8 citations82
US6913702B2Jul 5, 2005

Amorphous material processing method and glass substrate

NIPPON SHEET GLASS CO LTD9 citations74
US7838452B2Nov 23, 2010

Ultraviolet ray transmitting glass composition and glass article making use of the same

NIPPON SHEET GLASS CO LTD7 citations73
US6550278B2Apr 22, 2003

Method of manufacturing glass substrate for use as information recording medium

NIPPON SHEET GLASS CO LTD9 citations73
US9783451B2Oct 10, 2017

Glass composition, glass composition for chemical strengthening, strengthened glass article, and cover glass for display

NIPPON SHEET GLASS CO LTD4 citations71
US9688573B2Jun 27, 2017

Glass composition, chemically strengthened glass, and glass substrate for information recording medium

NIPPON SHEET GLASS CO LTD4 citations71
US9688565B2Jun 27, 2017

Glass composition, glass composition for chemical strengthening, strengthened glass article, and cover glass for display

NIPPON SHEET GLASS CO LTD5 citations71
US11840477B2Dec 12, 2023

Glass composition, glass fiber, glass cloth, and method for producing glass fiber

NIPPON SHEET GLASS CO LTD2 citations69
US11773009B2Oct 3, 2023

Glass composition, glass fiber, glass cloth, and method for producing glass fiber

NIPPON SHEET GLASS CO LTD2 citations69
US12391599B2Aug 19, 2025

Glass composition for chemical strengthening and chemically strengthened glass article

NIPPON SHEET GLASS CO LTD1 citations63
US7727407B2Jun 1, 2010

Amorphous material processing method

NIPPON SHEET GLASS CO LTD2 citations63
US12534397B2Jan 27, 2026

Glass filler and method for producing the same, and resin composition including glass filler

NIPPON SHEET GLASS CO LTD0 citations59

AVANSTRATE INC

4 patents

HOYA CORP

3 patents

OLYMPUS CORP

1 patent