Inventor
JUJO KOICHIRO
JP17 patents
⚠️ This page may combine multiple inventors who share the name “JUJO KOICHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO INSTR INC
14 patentsUS6406176B1Jun 18, 2002
Chronograph timepiece
SEIKO INSTR INC32 citations92
US6554468B1Apr 29, 2003
Mechanical timepiece with timed annular balance rotating angle control mechanism
SEIKO INSTR INC16 citations83
US8021534B2Sep 20, 2011
Electroforming mold and method for manufacturing the same, and method for manufacturing electroformed component
SEIKO INSTR INC7 citations82
US7887995B2Feb 15, 2011
Electroforming mold and method for manufacturing the same, and method for manufacturing electroformed component
SEIKO INSTR INC14 citations82
US6166999ADec 26, 2000
Clock with a mainspring wound state indicator
SEIKO INSTR INC19 citations79
US7350967B2Apr 1, 2008
Speed control mechanism and mechanical timepiece having the same
SEIKO INSTR INC6 citations73
US7167420B2Jan 23, 2007
Timepiece including base plate formed of resin and wheel train
SEIKO INSTR INC8 citations73
US6609822B1Aug 26, 2003
Rate adjusting method of mechanical timepieces
SEIKO INSTR INC11 citations73
US6431746B1Aug 13, 2002
Mechanical timepiece with timed annular balance rotating angle control mechanism
SEIKO INSTR INC11 citations73
US6422348B1Jul 23, 2002
Transmission wheel, method for manufacturing transmission wheel and self-winding wheel train structure having transmission wheel
SEIKO INSTR INC7 citations73
US6804172B2Oct 12, 2004
Analog electronic timepiece including plural indicator wheels
SEIKO INSTR INC2 citations60
US8852491B2Oct 7, 2014
Method manufacturing electroforming mold
SEIKO INSTR INC0 citations51
US7170827B2Jan 30, 2007
Timepiece, having bearing portion formed of resin and wheel train
SEIKO INSTR INC0 citations41
US6507537B1Jan 14, 2003
Power reserve mechanism
SEIKO INSTR INC0 citations41