Inventor

KAWATA SEIJI

JP4 patents

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

NEC CORP

2 patents

US5636049AJun 3, 1997

Mechanism for scanning the inner periphery of a drum included in an image forming apparatus

NEC CORP22 citations90

US6181720B1Jan 30, 2001

Semiconductor laser device and method for manufacturing same

NEC CORP34 citations89

NEC ELECTRONICS CORP

1 patent

US7378627B2May 27, 2008

Semiconductor light receiving element and optical pick-up device having the semiconductor light receiving element

NEC ELECTRONICS CORP2 citations57

RENESAS ELECTRONICS CORP

1 patent

US10256913B2Apr 9, 2019

Optical driving device and optical communication system

RENESAS ELECTRONICS CORP0 citations47