TU

Tsunekazu Udagawa

IC Ishikawa Gasket Co.: 98 patents #1 of 48Top 3%
Overall (All Time): #14,936 of 4,157,543Top 1%
99
Patents All Time

Issued Patents All Time

Showing 76–99 of 99 patents

Patent #TitleCo-InventorsDate
4995624 Steel laminate gasket with wide sealing area Susumu Inamura 1991-02-26
4976445 Steel laminate gasket 1990-12-11
4971338 Steel laminate gasket with associated beads 1990-11-20
4938488 Steel laminate gasket with wide sealing area Susumu Inamura 1990-07-03
4898396 Steel laminate gasket 1990-02-06
4896891 Steel laminate gasket with associated beads 1990-01-30
4869516 Steel laminate gaskets Yasuji Hiramatsu, Hidetaka Nakasone, Yoshio Yamada 1989-09-26
4867462 Steel laminate gasket with separate beads 1989-09-19
4861046 Steel laminate gasket with separate beads 1989-08-29
4834399 Steel laminate gasket Susumu Inamura 1989-05-30
4828275 Gasket with elastic sealing members 1989-05-09
4826708 Method of manufacturing a steel plate with a seal coating for a steel laminate gasket 1989-05-02
4809653 Steel laminate type cylinder head gasket Yoshio Yamada 1989-03-07
4807892 Steel laminate gasket with high sealing ability 1989-02-28
4803965 Steel laminate type cylinder head gasket Yoshio Yamada 1989-02-14
4791897 Steel laminate type cylinder head gasket 1988-12-20
4778189 Gasket with elastic sealing members 1988-10-18
4776073 Method of manufacturing a steel laminate gasket 1988-10-11
4767124 Gasket for an internal combustion engine 1988-08-30
4759556 Metal gasket with auxiliary bead 1988-07-26
4759585 Steel laminate gasket with meshing corrugated beads 1988-07-26
4754982 Steel laminate gasket Susumu Inamura 1988-07-05
4714260 Steel laminate gasket 1987-12-22
4711456 Gasket for an internal combustion engine 1987-12-08