Inventor

Shinobu Nagahama

Inventor

Saitama, JP

Overview

17→

Patents

1989–2009

Patent span

Chemistry

Primary field (CPC C)

Patents· 17 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C03Cprimary

C03CChemical composition of glasses, glazes or vitreous enamels41%

C09KMaterials for miscellaneous applications, not provided for elsewhere17%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%

G02BOptical elements, systems or apparatus10%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein7%

C30BSingle-crystal growth3%

H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light3%

PatentTitleYear

7,505,655'White light-emitting device using fluorescent fiber'2009 7,312,169'Optical glass for precision molding'2007 7,277,618'White light-emitting device using fluorescent fiber'2007 7,151,064'Optical glass suitable for mold forming'2006 7,141,525'Optical glass for precision molding'2006 6,784,128'Optical glass for molding'2004 6,372,155'Oxide glass showing long afterglow and accelerated phosphorescence'2002 6,333,282'Optical glass for precision molding'2001 6,271,160'Oxide phosphorescent glass capable of exhibiting a long lasting afterglow and photostimulated luminescence'2001 6,123,872'Oxide phosphorescent glass capable of exhibiting a long lasting after-glow and photostimulated luminescence'2000 5,755,998'Fluorophosphate fluorescent glass capable of exhibiting fluorescence in the visible region'1998 5,541,012'Infrared-to-visible up-conversion material'1996 5,472,471'Process for the production of an optical fiber bundle for heat resistance and vacuum resistance by bonding fiber ends with a bonding glass'1995 5,439,616'Infrared light-excited light-emitting substance'1995 5,017,520'Fluorosphosphate optical glass'1991 4,990,468'Fluorophosphate optical glass'1991 4,808,556'Fluorophosphate optical glass'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to SUMITA OPTICAL GLASS MFG CO LT (1)· patent assignee history

1989–1995Based in Kasukabe, JP· patent location history

1991–2009Patents assigned to SUMITA OPTICAL GLASS (16)· patent assignee history

1995Patents assigned to MITSUBISHI MATERIALS CORP (1)· patent assignee history

1995–2009Based in Saitama, JP· patent location history

1996Patents assigned to NIPPON TELEGRAPH & TELEPHONE (1)· patent assignee history

1996Based in Chiyoda-ku, JP· patent location history

1998Based in Urawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SUMITA OPTICAL GLASS	16	1991–2009
MITSUBISHI MATERIALS CORP	1	1995
NIPPON TELEGRAPH & TELEPHONE	1	1996
SUMITA OPTICAL GLASS MFG CO LT	1	1989

Locations

Location	Patents	Span
Saitama, JP	11	1995–2009
Kasukabe, JP	4	1989–1995
Urawa, JP	1	1998
Chiyoda-ku, JP	1	1996