HIDEO HIRASAWA

Person

GUNMA-KEN, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of making glass base material
- Patent number 7,823,418
- Issue date Nov 2, 2010
- Shin-Etsu Chemical Co., Ltd.
- Tadakatsu Shimada
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical fiber preform, method for manufacturing thereof, and optica...
- Patent number 7,752,869
- Issue date Jul 13, 2010
- Shin-Etsu Chemical Co., Ltd.
- Tetsuya Otosaka
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass base material producing device
- Patent number 7,213,416
- Issue date May 8, 2007
- Shin-Etsu Chemical Co., Ltd.
- Tadakatsu Shimada
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass base material packing method
- Patent number 7,093,412
- Issue date Aug 22, 2006
- Shin-Etsu Chemical Co., Ltd.
- Takaaki Nagao
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Apparatus for fabricating soot preform for optical fiber
- Patent number 7,082,791
- Issue date Aug 1, 2006
- Shin-Etsu Chemical Co., Ltd.
- Dai Inoue
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass base material manufacturing apparatus and glass base material...
- Patent number 7,055,345
- Issue date Jun 6, 2006
- Yuuji Tobisaka
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for manufacturing glass-base-material by measuring the weigh...
- Patent number 6,988,382
- Issue date Jan 24, 2006
- Shin-Etsu Chemical Co., Ltd.
- Junichiro Takei
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Apparatus and method for manufacturing glass-base-material
- Patent number 6,941,772
- Issue date Sep 13, 2005
- Shin-Etsu Chemical Co., Ltd.
- Junichiro Takei
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical fiber manufacture method, preform manufacture method, and p...
- Patent number 6,848,276
- Issue date Feb 1, 2005
- Shin-Etsu Chemical Co., Ltd.
- Yoshiaki Shimizu
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of making an optical fiber preform where a second elongation...
- Patent number 6,779,362
- Issue date Aug 24, 2004
- Shin-Etsu Chemical Co., Ltd.
- Yoshiaki Shimizu
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Straightening a glass rod for use in making an optical fiber preform
- Patent number 6,742,363
- Issue date Jun 1, 2004
- Shin-Etsu Chemical Co., Ltd.
- Waichi Yamamura
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Apparatus for preventing redeposition of silica during flame severing
- Patent number 6,735,986
- Issue date May 18, 2004
- Shin-Etsu Chemical Co., Ltd.
- Shinji Suzuki
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Apparatus for manufacturing glass base material and a method for ma...
- Patent number 6,698,240
- Issue date Mar 2, 2004
- Shin-Etsu Chemical Co., Ltd.
- Hiroshi Tsumura
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
OVD apparatus including air-regulating structure
- Patent number 6,672,112
- Issue date Jan 6, 2004
- Shin-Etsu Chemical Co.
- Yuuji Tobisaka
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass base material drawing apparatus and method for drawing glass...
- Patent number 6,640,589
- Issue date Nov 4, 2003
- Shin-Etsu Chemical Co., Ltd.
- Mitsukuni Sakashita
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass base material manufacturing apparatus with super imposed back...
- Patent number 6,546,759
- Issue date Apr 15, 2003
- Shin-Etsu Chemical Co., Ltd.
- Yuuji Tobisaka
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method and apparatus for fusing an optical fiber preform
- Patent number 6,532,776
- Issue date Mar 18, 2003
- Shin-Etsu Chemical Co., Ltd.
- Shinji Suzuki
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Double flame polishing method for fiber preforms
- Patent number 6,467,311
- Issue date Oct 22, 2002
- Shin-Etsu Chemical Co., Ltd.
- Hideki Fujii
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for producing optical fiber base material ingot by grinding...
- Patent number 6,467,310
- Issue date Oct 22, 2002
- Shin-Etsu Chemical Co., Ltd.
- Masami Terashima
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Apparatus for sintering a porous glass base material and a method t...
- Patent number 6,442,978
- Issue date Sep 3, 2002
- Shin-Etsu Chemical Co. Ltd.
- Takeshi Kamio
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical fiber manufacture method including elongating a preform in...
- Patent number 6,386,001
- Issue date May 14, 2002
- Shin-Etsu Chemical Co., Ltd.
- Yoshiaki Shimizu
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of depositing glass soot with controlling reaction chamber h...
- Patent number 6,354,112
- Issue date Mar 12, 2002
- Shin-Etsu Chemical Co., Ltd.
- Yasuhiro Nakashima
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Porous optical fiber base materials, optical fiber base materials a...
- Patent number 6,306,500
- Issue date Oct 23, 2001
- Shin-Etsu Chemical Co., Ltd.
- Haruyoshi Kuwabara
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Apparatus and method for drawing a glass ingot
- Patent number 6,220,057
- Issue date Apr 24, 2001
- Shin-Etsu Chemical Co., Ltd.
- Waichi Yamamura
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of stretching an optical fiber preform with monitoring the d...
- Patent number 6,178,778
- Issue date Jan 30, 2001
- Shin-Etsu Chemical Co., Ltd.
- Soichiro Kenmochi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for the preparation of a porous silica glass preform for opt...
- Patent number 6,145,344
- Issue date Nov 14, 2000
- Shin-Etsu Chemical Co., Ltd.
- Hiroshi Oyamada
- G02 - OPTICS
Information Patent Grant
Method for drawing a glass ingot
- Patent number 6,134,922
- Issue date Oct 24, 2000
- Shin-Etsu Chemical Co., Ltd.
- Tadakatsu Shimada
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for making a preform for optical fibers by drawing a mother...
- Patent number 6,131,414
- Issue date Oct 17, 2000
- Shin-Etsu Chemical Co., Ltd.
- Yoshiaki Shimizu
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Apparatus and method for making an optical fiber preform using a co...
- Patent number 5,958,102
- Issue date Sep 28, 1999
- Shin-Etsu Chemical Co., Ltd.
- Tadakatsu Shimada
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of forming a fiber preform to minimize shifts of the zero-di...
- Patent number 5,683,486
- Issue date Nov 4, 1997
- Shin-Etsu Chemical Co., Ltd.
- Hiroshi Oyamada
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Glass base material manufacturing apparatus and method thereof
- Publication number 20060213229
- Publication date Sep 28, 2006
- Shin-Etsu Chemical Co., Ltd.
- Tadakatsu Shimada
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Optical fiber preform, method for manufacturing thereof, and optica...
- Publication number 20050229639
- Publication date Oct 20, 2005
- Shin-Etsu Chemical Co., Ltd.
- Tetsuya Otosaka
- G02 - OPTICS
Information Patent Application
APPARATUS FOR FABRICATING SOOT PREFORM FOR OPTICAL FIBER
- Publication number 20050210925
- Publication date Sep 29, 2005
- Dai Inoue
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Method for manufacturing base material for optical fiber, apparatus...
- Publication number 20050147367
- Publication date Jul 7, 2005
- Tadakatsu Shimada
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Optical fiber manufacture method, preform manufacture method, and p...
- Publication number 20050132753
- Publication date Jun 23, 2005
- Yoshiaki Shimizu
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Apparatus and method for manufacturing glass-base-material
- Publication number 20050109064
- Publication date May 26, 2005
- Shin-Etsu Chemical Co., Ltd.
- Junichiro Takei
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Glass base material for optical fiber and manufacturing method ther...
- Publication number 20040200241
- Publication date Oct 14, 2004
- Shin-Etsu Chemical Co., Ltd.
- Tetsuya Otosaka
- G02 - OPTICS
Information Patent Application
Glass rod manufacturing method and glass rod manufacturing apparatus
- Publication number 20040177652
- Publication date Sep 16, 2004
- Shin-Etsu Chemical Co., Ltd.
- Waichi Yamamura
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Optical fiber preform, method for manufacturing thereof, and optica...
- Publication number 20040028362
- Publication date Feb 12, 2004
- Shin-Etsu Chemical Co., Ltd.
- Tetsuya Otosaka
- G02 - OPTICS
Information Patent Application
Glass base material producing device and glass base material produc...
- Publication number 20030233849
- Publication date Dec 25, 2003
- Tadakatsu Shimada
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Lower-loss base material for optical fibres and manufacturing metho...
- Publication number 20030221460
- Publication date Dec 4, 2003
- Shin-Etsu Chemical Co., Ltd.
- Dai Inoue
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Apparatus for melting an optical fiber preform
- Publication number 20030126891
- Publication date Jul 10, 2003
- Shin-Etsu Chemical Co., Ltd.
- Shinji Suzuki
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Glass base material manufacturing apparatus and glass base material...
- Publication number 20030126893
- Publication date Jul 10, 2003
- Shin-Etsu Chemical Co., Ltd.
- Yuuji Tobisaka
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Glass base material manufacturing apparatus and glass base material...
- Publication number 20030121290
- Publication date Jul 3, 2003
- Shin-Etsu Chemical Co., Ltd.
- Yuuji Tobisaka
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Apparatus and method for manufacturing glass-base-material
- Publication number 20030005726
- Publication date Jan 9, 2003
- Shin-Etsu Chemical Co., Ltd.
- Junichiro Takei
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Optical fiber manufacture method, preform manufacture method, and p...
- Publication number 20020152772
- Publication date Oct 24, 2002
- Yoshiaki Shimizu
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Optical fiber manufacture method, preform manufacture method, and p...
- Publication number 20020148257
- Publication date Oct 17, 2002
- Shin-Etsu Chemical Co., Ltd.
- Yoshiaki Shimizu
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Optical fiber manufacture method, preform manufacture method, and p...
- Publication number 20020144520
- Publication date Oct 10, 2002
- Shin-Etsu Chemical Co., Ltd.
- Yoshiaki Shimizu
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Optical fiber manufacture method, preform manufacture method, and p...
- Publication number 20020139149
- Publication date Oct 3, 2002
- Shin-Etsu Chemical Co., Ltd.
- Yoshiaki Shimizu
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Optical fiber manufacture method, preform manufacture method, and p...
- Publication number 20020139148
- Publication date Oct 3, 2002
- Shin-Etsu Chemical Co., Ltd.
- Yoshiaki Shimizu
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Optical fiber base material ingot and method for producing the same
- Publication number 20020100295
- Publication date Aug 1, 2002
- Shin-Etsu Chemical Co., Ltd.
- Masami Terashima
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
OPTICAL FIBER BASE MATERIAL INGOT AND METHOD FOR PRODUCING THE SAME
- Publication number 20020059815
- Publication date May 23, 2002
- MASAMI TERASHIMA
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Apparatus for fabricating soot preform for optical fiber
- Publication number 20020043079
- Publication date Apr 18, 2002
- Dai Inoue
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Optical fiber base material ingot and method for producing the same
- Publication number 20010054302
- Publication date Dec 27, 2001
- Shin-Etsu Chemical Co., Ltd.
- Masami Terashima
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
METHOD AND APPARATUS FOR PRODUCING A GLASS BASE MATERIAL FOR AN OPT...
- Publication number 20010013232
- Publication date Aug 16, 2001
- YASUHIRO NAKASHIMA
- C03 - GLASS MINERAL OR SLAG WOOL

HIDEO HIRASAWA

Person

Patents Grantslast 30 patents

Method of making glass base material

Optical fiber preform, method for manufacturing thereof, and optica...

Glass base material producing device

Glass base material packing method

Apparatus for fabricating soot preform for optical fiber

Glass base material manufacturing apparatus and glass base material...

Method for manufacturing glass-base-material by measuring the weigh...

Apparatus and method for manufacturing glass-base-material

Optical fiber manufacture method, preform manufacture method, and p...

Method of making an optical fiber preform where a second elongation...

Straightening a glass rod for use in making an optical fiber preform

Apparatus for preventing redeposition of silica during flame severing

Apparatus for manufacturing glass base material and a method for ma...

OVD apparatus including air-regulating structure

Glass base material drawing apparatus and method for drawing glass...

Glass base material manufacturing apparatus with super imposed back...

Method and apparatus for fusing an optical fiber preform

Double flame polishing method for fiber preforms

Method for producing optical fiber base material ingot by grinding...

Apparatus for sintering a porous glass base material and a method t...

Optical fiber manufacture method including elongating a preform in...

Method of depositing glass soot with controlling reaction chamber h...

Porous optical fiber base materials, optical fiber base materials a...

Apparatus and method for drawing a glass ingot

Method of stretching an optical fiber preform with monitoring the d...

Method for the preparation of a porous silica glass preform for opt...

Method for drawing a glass ingot

Method for making a preform for optical fibers by drawing a mother...

Apparatus and method for making an optical fiber preform using a co...

Method of forming a fiber preform to minimize shifts of the zero-di...

Patents Applicationslast 30 patents

Glass base material manufacturing apparatus and method thereof

Optical fiber preform, method for manufacturing thereof, and optica...

APPARATUS FOR FABRICATING SOOT PREFORM FOR OPTICAL FIBER

Method for manufacturing base material for optical fiber, apparatus...

Optical fiber manufacture method, preform manufacture method, and p...

Apparatus and method for manufacturing glass-base-material

Glass base material for optical fiber and manufacturing method ther...

Glass rod manufacturing method and glass rod manufacturing apparatus

Optical fiber preform, method for manufacturing thereof, and optica...

Glass base material producing device and glass base material produc...

Lower-loss base material for optical fibres and manufacturing metho...

Apparatus for melting an optical fiber preform

Glass base material manufacturing apparatus and glass base material...

Glass base material manufacturing apparatus and glass base material...

Apparatus and method for manufacturing glass-base-material

Optical fiber manufacture method, preform manufacture method, and p...

Optical fiber manufacture method, preform manufacture method, and p...

Optical fiber manufacture method, preform manufacture method, and p...

Optical fiber manufacture method, preform manufacture method, and p...

Optical fiber manufacture method, preform manufacture method, and p...

Optical fiber base material ingot and method for producing the same

OPTICAL FIBER BASE MATERIAL INGOT AND METHOD FOR PRODUCING THE SAME

Apparatus for fabricating soot preform for optical fiber

Optical fiber base material ingot and method for producing the same

METHOD AND APPARATUS FOR PRODUCING A GLASS BASE MATERIAL FOR AN OPT...