Masaharu Ohashi

Follow

Person

Sakai-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical fiber and optical transmission line
- Patent number 9,297,952
- Issue date Mar 29, 2016
- Fujikura Ltd.
- Ryo Maruyama
- G02 - OPTICS
Information Patent Grant
Optical fiber, optical transmission line, and method for manufactur...
- Patent number 9,188,735
- Issue date Nov 17, 2015
- Fujikura Ltd.
- Ryo Maruyama
- G02 - OPTICS
Information Patent Grant
High power acceptable optical fiber and fabrication method thereof
- Patent number 5,303,318
- Issue date Apr 12, 1994
- Nippon Telegraph & Telephone Corporation
- Mitsuhiro Tateda
- G02 - OPTICS
Information Patent Grant
Single-polarization optical fiber
- Patent number 4,913,521
- Issue date Apr 3, 1990
- Nippon Telegraph & Telephone Corporation
- Katsusuke Tajima
- G02 - OPTICS
Information Patent Grant
Zero dispersion single mode optical fiber with center core and side...
- Patent number 4,755,022
- Issue date Jul 5, 1988
- Nippon Telegraph & Telephone Corporation
- Masaharu Ohashi
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL FIBER AND OPTICAL TRANSMISSION LINE
- Publication number 20140029901
- Publication date Jan 30, 2014
- OSAKA PREFECTURE UNIVERSITY PUBLIC CORPORATION
- Ryo MARUYAMA
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER, OPTICAL TRANSMISSION LINE, AND METHOD FOR MANUFACTUR...
- Publication number 20130243380
- Publication date Sep 19, 2013
- OSAKA PREFECTURE UNIVERSITY PUBLIC CORPORATION
- Ryo MARUYAMA
- G02 - OPTICS
Information Patent Application
Method for manufacturing optical fiber using ultrasonic drill
- Publication number 20030136154
- Publication date Jul 24, 2003
- Katsusuke Tajima
- G02 - OPTICS