Inventor
KAWAGUCHI SHIGERU
JP14 patents
⚠️ This page may combine multiple inventors who share the name “KAWAGUCHI SHIGERU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON GASKET KK
8 patentsUS5286039AFeb 15, 1994
Metal gasket
NIPPON GASKET KK75 citations95
US5348315ASep 20, 1994
Metallic gasket
NIPPON GASKET KK27 citations92
US5310196AMay 10, 1994
Metallic gasket and method of manufacturing the same
NIPPON GASKET KK38 citations92
US5294134AMar 15, 1994
Metallic gasket
NIPPON GASKET KK22 citations92
US5294135AMar 15, 1994
Metal gasket and production method thereof
NIPPON GASKET KK35 citations92
US5087058AFeb 11, 1992
Metal gasket for manifold
NIPPON GASKET KK45 citations92
US4964293AOct 23, 1990
Method of manufacturing metallic gaskets
NIPPON GASKET KK12 citations72
US6220606B1Apr 24, 2001
Metallic gasket
NIPPON GASKET KK12 citations69
NHK SPRING CO LTD
4 patentsUS6122934ASep 26, 2000
Hot Isostatic pressing of a planar optical waveguide
NHK SPRING CO LTD31 citations92
US6605228B1Aug 12, 2003
Method for fabricating planar optical waveguide devices
NHK SPRING CO LTD45 citations90
US6361222B1Mar 26, 2002
Optical device and optical module provided with optical device
NHK SPRING CO LTD15 citations79
US6898349B2May 24, 2005
Optical multi-demultiplexer
NHK SPRING CO LTD4 citations60