Koya; Kazuo

Patent Applications and Registrations

Patent applications and USPTO patent grants for Koya; Kazuo.The latest application filed is for "glass member resistant to plasma corrosion".

Company Profile

0.16.2

Koya; Kazuo - Koriyama JP
Koya, Kazuo - Fukushima JP
Koya; Kazuo - Annaka JP
Koya, Kazuo - Gunma JP
Koya; Kazuo - Gunma-ken JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Glass member resistant to plasma corrosion Grant 7,015,163 - Sato , et al. March 21, 2	2006-03-21
Glass member resistant to plasma corrosion App 20030185738 - Sato, Tatsuhiro ; et al.	2003-10-02
Grating optical fiber, and optical fiber base material suitable for grating Grant 6,600,857 - Abe , et al. July 29, 2	2003-07-29
Multi-branching optical coupler App 20010002219 - Mori, Tsuneo ; et al.	2001-05-31
Grating optical fiber, and optical fiber base material suitable for grating Grant 6,157,758 - Abe , et al. December 5, 2	2000-12-05
Rare earth element-doped multiple-core optical fiber and method for fabricating the same Grant 5,712,941 - Imoto , et al. January 27, 1	1998-01-27
Wide-band optical fiber coupler and method for preparing the same Grant 5,671,309 - Abe , et al. September 23, 1	1997-09-23
Rare earth element-doped multiple-core optical fiber, method for fabricating the same, and optical amplifier using the same Grant 5,570,448 - Imoto , et al. October 29, 1	1996-10-29
Wide wavelength range-optical fiber coupler and method for the preparation thereof Grant 5,420,950 - Koya , et al. May 30, 1	1995-05-30
Optical fiber coupler and method for preparing same Grant 5,404,415 - Mori , et al. April 4, 1	1995-04-04
Supporting member for optical fiber coupler Grant 5,295,219 - Koya , et al. March 15, 1	1994-03-15
Optical amplifier with erbium-doped fiber Grant 5,260,816 - Edagawa , et al. November 9, 1	1993-11-09
Method for preparing a fused silica glass body co-doped with a rare earth element and aluminum Grant 5,246,475 - Edagawa , et al. September 21, 1	1993-09-21
Method and apparatus for determining refractive index distribution Grant 5,078,488 - Yamaguchi , et al. January 7, 1	1992-01-07
Base material of optical fibers and a method for the preparation thereof Grant 4,874,416 - Yokokawa , et al. October 17, 1	1989-10-17
Method for resin encapsulation of a semiconductor device and a resin composition therefor Grant 4,772,644 - Itoh , et al. September 20, 1	1988-09-20
Quartz glass-made optical fibers and a method for the preparation thereof Grant 4,690,504 - Yokokawa , et al. September 1, 1	1987-09-01
Method for reducing diameter of a glass rod or tube by drawing Grant 4,608,071 - Yokokawa , et al. August 26, 1	1986-08-26

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.