Inventor

Chihiro Kawai

Inventor

Itami, JP

Overview

1993–2010

Patent span

Chemistry

Primary field (CPC C)

Patents· 19 as inventor

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

C04Bprimary

C04BLime, magnesia22%

B01DSeparation10%

Y10TTechnical subjects covered by former us classification10%

C22CAlloys7%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h107%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry5%

A61LMethods or apparatus for sterilising materials or objects in general3%

B22FWorking metallic powder3%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form3%

C02FTreatment of water, waste water, sewage, or sludge3%

PatentTitleYear

7,767,158'Surface light-emitting device, filtering device using same, and optically assisted ceramic filter'2010 7,468,529'Porous UV-emitting semiconductor on porous substrate as sterilizing filter made by filtering suspended semiconductor particles'2008 7,255,320'Mold for a plastic filter'2007 6,569,524'High thermal conductivity composite material, and method for producing the same'2003 6,507,105'Member for semiconductor device and method for producing the same'2003 6,280,496'Silicon carbide based composite material and manufacturing method thereof'2001 6,214,227'Ceramic filter module'2001 6,123,895'Aluminum base member for semiconductor device containing a nitrogen rich surface and method for producing the same'2000 6,091,375'Radome'2000 5,858,523'Porous ceramic film and process for producing the same'1999 5,846,460'Method of preparing silicon nitride porous body'1998 5,780,374'High-strength porous silicon nitride body and process for producing the same'1998 5,776,600'Slide member and method of manufacturing the same'1998 5,696,042'Ceramic porous body and method for preparing the same'1997 5,695,700'Method of preparing a ceramic porous body'1997 5,618,765'Ceramics porous body and method of preparing the same'1997 5,543,371'Slide member and method of manufacturing the same'1996 5,354,398'Method of manufacturing fiber-reinforced composites having a gradient function'1994 5,254,397'Carbon fiber-reinforced composite material having a gradient carbide coating'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2010Patents assigned to SUMITOMO ELECTRIC INDUSTRIES (18)· patent assignee history

1993–2010Based in Itami, JP· patent location history

1994–1998Based in Hyogo, JP· patent location history

2000Based in Takarazuka, JP· patent location history

2007Patents assigned to JUKEN FINE TOOL CO LTD (1)· patent assignee history

2007Based in Toyohashi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SUMITOMO ELECTRIC INDUSTRIES	18	1993–2010
JUKEN FINE TOOL CO LTD	1	2007

Locations

Location	Patents	Span
Itami, JP	15	1993–2010
Hyogo, JP	2	1994–1998
Toyohashi, JP	1	2007
Takarazuka, JP	1	2000