Inventor
OTA TSUTOMU
JP12 patents
⚠️ This page may combine multiple inventors who share the name “OTA TSUTOMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
8 patentsUS6031201AFeb 29, 2000
Laser machining apparatus with rotatable phase grating
SEIKO EPSON CORP189 citations99
US6635850B2Oct 21, 2003
Laser machining method for precision machining
SEIKO EPSON CORP76 citations98
US6809020B2Oct 26, 2004
Method for forming bump, semiconductor device and method for making the same, circuit board, and electronic device
SEIKO EPSON CORP108 citations97
US6376799B1Apr 23, 2002
Laser machining apparatus with a rotatable phase grating
SEIKO EPSON CORP38 citations96
US5504735AApr 2, 1996
Information recording disk having a stepped central recess and hub configuration
SEIKO EPSON CORP25 citations90
US7579692B2Aug 25, 2009
Method for forming a bump, semiconductor device and method of fabricating same, semiconductor chip, circuit board, and electronic instrument
SEIKO EPSON CORP15 citations83
US7355280B2Apr 8, 2008
Method for forming a bump, semiconductor device and method of fabricating same, semiconductor chip, circuit board, and electronic instrument
SEIKO EPSON CORP11 citations83
US5265086ANov 23, 1993
Information recording disk
SEIKO EPSON CORP16 citations71