Inventor
TAMADA KENJI
JP23 patents
⚠️ This page may combine multiple inventors who share the name “TAMADA KENJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SILVER SEIKO
13 patentsUSD305775SJan 30, 1990
Copying machine
SILVER SEIKO12 citations73
USD306249SFeb 27, 1990
Combined paper folder and envelope opener or similar article
SILVER SEIKO6 citations72
USD299249SJan 3, 1989
Typewriter
SILVER SEIKO6 citations72
USD273117SMar 20, 1984
Typewriter for European languages
SILVER SEIKO11 citations72
USD297714SSep 20, 1988
Score collector for base-ball game
SILVER SEIKO7 citations71
USD286057SOct 7, 1986
Ribbon cassette for typewriter
SILVER SEIKO8 citations71
USD284771SJul 22, 1986
Menu printer
SILVER SEIKO9 citations71
USD300434SMar 28, 1989
Typewriter
SILVER SEIKO5 citations63
USD291323SAug 11, 1987
Typewriter
SILVER SEIKO4 citations61
USD299248SJan 3, 1989
Typewriter
SILVER SEIKO5 citations59
USD291208SAug 4, 1987
Print wheel cartridge for typewriter
SILVER SEIKO2 citations57
USD290616SJun 30, 1987
Typewriter
SILVER SEIKO0 citations51
USD313239SDec 25, 1990
Typewriter
SILVER SEIKO0 citations48
NTN TOYO BEARING CO LTD
7 patentsUS6843605B2Jan 18, 2005
Roller thrust bearing
NTN TOYO BEARING CO LTD28 citations92
US5150974ASep 29, 1992
Grease-sealed bearing with oxide layers
NTN TOYO BEARING CO LTD29 citations91
US9541137B2Jan 10, 2017
Cooling structure for bearing device
NTN TOYO BEARING CO LTD15 citations82
US7707723B2May 4, 2010
Method of producing a roller thrust bearing having a plurality of rows of rollers
NTN TOYO BEARING CO LTD5 citations73
US7273319B2Sep 25, 2007
Roller thrust bearing
NTN TOYO BEARING CO LTD8 citations73
US10280980B2May 7, 2019
Cooling structure for bearing device
NTN TOYO BEARING CO LTD3 citations71
US7942586B2May 17, 2011
Thrust needle bearing
NTN TOYO BEARING CO LTD3 citations62