P

Inventor

ECHIGO NAOYUKI

5 patents
⚠️ This page may combine multiple inventors who share the name “ECHIGO NAOYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SEIKO INSTR & ELECTRONICS

2 patents
US4306170ADec 15, 1981

AT-Cut quartz resonator, with w/t=2.0 to 2.8, l/t<25

SEIKO INSTR & ELECTRONICS21 citations81
US4247797AJan 27, 1981

Rectangular AT-cut quartz resonator

SEIKO INSTR & ELECTRONICS11 citations72

TDK CORP

2 patents
US7348555B2Mar 25, 2008

Apparatus and method for irradiating electron beam

TDK CORP3 citations61
US7282726B2Oct 16, 2007

Apparatus and method for irradiating electron beam

TDK CORP4 citations61

SEIKO INSTR INC

1 patent
US5309253AMay 3, 1994

Image enlargement/reduction processor and method

SEIKO INSTR INC8 citations64