Inventor

Shinichi Irisawa

Inventor

Shizuoka, JP

Overview

1991–2013

Patent span

Electricity

Primary field (CPC H)

Patents· 37 as inventor

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

H01Jprimary

H01JElectric discharge tubes or discharge lamps95%

F21SNon-portable lighting devices3%

F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to uses or applications of lighting devices or systems3%

PatentTitleYear

8,471,473'Arc tube for discharge lamp device'2013 7,977,886'Mercury-free discharge bulb'2011 7,583,028'Mercury free arc tube for a discharge lamp'2009 7,443,100'ARC tube discharge lamp with compression strain layer'2008 7,345,426'Alloy for a lead member of an electric lamp and electrode structure of the electric lamp'2008 7,314,298'Automotive headlight discharge bulb'2008 7,279,841'Arc tube for a discharge lamp'2007 7,170,230'Mercury-free arc tube for a discharge lamp'2007 7,038,385'Mercury-free arc tube for discharge lamp unit'2006 6,974,360'Method of producing an arc tube for a discharge lamp device'2005 6,918,808'Arc tube for discharge lamp and method for producing the same'2005 6,903,510'Arc tube having compressive stress and method for manufacture of an arc tube'2005 6,891,332'Arc tube capable of preventing occurrence of leak due to cracks and manufacturing method therefore'2005 6,815,894'Mercury-free arc tube for discharge lamp unit'2004 6,750,612'Mercury-free arc tube for discharge lamp unit'2004 6,707,239'Arc tube including step-down plane portions in pinch seal area'2004 6,672,923'Method of manufacturing arc tube'2004 6,580,200'Discharge lamp and manufacturing method thereof'2003 6,547,619'ARC tube for discharge lamp unit and method of manufacturing same'2003 6,456,008'Metal Halide lamp having improved shunting characteristics'2002 6,452,334'Arc tube with residual-compressive-stress layer for discharge lamp unit and method of manufacturing same'2002 6,411,037'Arc tube for discharge lamp device and method of manufacturing the same'2002 6,354,900'Arc tube and fabricating method thereof'2002 6,294,861'Electric discharge lamp apparatus'2001 6,274,973'Electric discharge lamp apparatus with insulating plug'2001 6,239,539'Electric discharge lamp apparatus and insulating plug therefor having a particular front portion'2001 5,993,279'Discharge lamp arc tube and method of producing the same'1999 5,962,976'Molybdenum foils with yttrium oxide and recrystallization grains no more than 50 microns within the pinch seals of a metallic halide lamp'1999 5,877,591'Arc tube for discharge lamp device'1999 5,877,590'Discharge lamp arc tube and method of producing the same'1999 5,601,465'Method for manufacturing arc tube for discharge bulb'1997 5,505,648'Contamination-free method of making arc tubes'1996 5,402,037'Arc tube having particular volume and gas pressure for luminous flux'1995 5,286,227'Arc tube and method for manufacturing the same'1994 5,220,235'Discharge lamp device'1993 5,177,397'Discharge lamp assembly with insulating tubular member and metal band around pinch seal'1993 5,059,855'Discharge lamp base construction'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2013Patents assigned to KOITO MFG CO LTD (36)· patent assignee history

1991–1999Based in Shimizu, JP· patent location history

1993–2013Based in Shizuoka, JP· patent location history

2008Patents assigned to ALMT CORP (1)· patent assignee history

2013Patents assigned to FUKUYO TAKESHI (1)· patent assignee history

2013Patents assigned to HOMMA AKIRA (1)· patent assignee history

2013Patents assigned to IRISAWA SHINICHI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KOITO MFG CO LTD	36	1991–2013
ALMT CORP	1	2008
FUKUYO TAKESHI	1	2013
HOMMA AKIRA	1	2013
IRISAWA SHINICHIself	1	2013

Locations

Location	Patents	Span
Shizuoka, JP	34	1993–2013
Shimizu, JP	3	1991–1999