Inventor
TSUTSUMI AKIRA
JP23 patents
⚠️ This page may combine multiple inventors who share the name “TSUTSUMI AKIRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CHEMICALS CORP
8 patentsUS6420659B1Jul 16, 2002
Flexible wiring board pieces and wiring sheets
SONY CHEMICALS CORP24 citations92
US6323434B1Nov 27, 2001
Circuit board and production method thereof
SONY CHEMICALS CORP21 citations92
US6294316B1Sep 25, 2001
Processes for manufacturing flexible printed wiring boards
SONY CHEMICALS CORP22 citations92
US6344308B1Feb 5, 2002
Method of manufacturing a flexible circuit board
SONY CHEMICALS CORP15 citations84
US6930390B2Aug 16, 2005
Flexible printed wiring boards
SONY CHEMICALS CORP13 citations83
US6362433B1Mar 26, 2002
Flexible printed circuit board
SONY CHEMICALS CORP19 citations82
US6233821B1May 22, 2001
Processes for manufacturing flexible printed wiring boards
SONY CHEMICALS CORP13 citations72
US6638689B1Oct 28, 2003
Photoresist compositions and flexible printed wiring boards with protective layer
SONY CHEMICALS CORP5 citations61
NORITZ CORP
6 patentsUS7647897B2Jan 19, 2010
Heating apparatus
NORITZ CORP62 citations93
US7458340B2Dec 2, 2008
Water heater
NORITZ CORP35 citations91
USD570976SJun 10, 2008
Gas water heater
NORITZ CORP18 citations91
USD570974SJun 10, 2008
Gas water heater
NORITZ CORP18 citations91
USD570973SJun 10, 2008
Gas water heater
NORITZ CORP9 citations83
USD570975SJun 10, 2008
Gas water heater
NORITZ CORP6 citations72
AMADA ENG & SERVICE
4 patentsUS4503313AMar 5, 1985
Relatively adjustable laser and optic system for laser processing
AMADA ENG & SERVICE27 citations92
US4434349AFeb 28, 1984
Laser beam cutting machines and the like
AMADA ENG & SERVICE25 citations82
US4417125ANov 22, 1983
Laser processing machine
AMADA ENG & SERVICE19 citations82
US4406940ASep 27, 1983
Laser processing machine
AMADA ENG & SERVICE17 citations74