Hiromasa Tawarayama

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the production of glass molded article, optical element...
- Patent number 8,336,332
- Issue date Dec 25, 2012
- Hoya Corporation
- Kazutaka Hayashi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical glass and optical product using the same
- Patent number 7,451,620
- Issue date Nov 18, 2008
- Hoya Corporation
- Xuelu Zou
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical glass and optical product using the same
- Patent number 6,995,101
- Issue date Feb 7, 2006
- Hoya Corporation
- Xuelu Zou
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Process for the production of glass molded article
- Patent number 6,786,064
- Issue date Sep 7, 2004
- Hoya Corporation
- Kazutaka Hayashi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Drawing a chalcogenide glass fiber in a sulfur atmosphere
- Patent number 5,917,108
- Issue date Jun 29, 1999
- Hoya Corporation
- Katsuhisa Itoh
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Laser glasses and laser glass fibers
- Patent number 5,764,661
- Issue date Jun 9, 1998
- Hoya Corporation
- Hiromasa Tawarayama
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
PROCESS FOR THE PRODUCTION OF GLASS MOLDED ARTICLE, OPTICAL ELEMENT...
- Publication number 20120151964
- Publication date Jun 21, 2012
- HOYA CORPORATION
- Kazutaka Hayashi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Process for the production of glass molded article, optical element...
- Publication number 20080216514
- Publication date Sep 11, 2008
- HOYA CORPORATION
- Kazutaka Hayashi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Optical glass and optical product using the same
- Publication number 20060081010
- Publication date Apr 20, 2006
- HOYA CORPORATION
- Xuelu Zou
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Process for the production of glass molded article, optical element...
- Publication number 20050011228
- Publication date Jan 20, 2005
- HOYA CORPORATION
- Kazutaka Hayashi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Process for the production of glass molded article, optical element...
- Publication number 20020073735
- Publication date Jun 20, 2002
- Kazutaka Hayashi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Optical glass and optical product using the same
- Publication number 20020042337
- Publication date Apr 11, 2002
- Xuelu Zou
- C03 - GLASS MINERAL OR SLAG WOOL