P

Inventor

ISHIHARA HISAYA

JP6 patents
⚠️ This page may combine multiple inventors who share the name “ISHIHARA HISAYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NEC CORP

3 patents
US6531920B1Mar 11, 2003

Differential amplifier circuit

NEC CORP21 citations89
US6054883AApr 25, 2000

High accuracy 90° phase shift circuit error detection

NEC CORP20 citations89
US6177839B1Jan 23, 2001

Variable gain amplifier circuit

NEC CORP9 citations70

NEC ELECTRONICS CORP

2 patents
US6636085B2Oct 21, 2003

Phase shifter with an RC polyphase filter

NEC ELECTRONICS CORP37 citations91
US7346123B2Mar 18, 2008

Quadrature modulator

NEC ELECTRONICS CORP1 citations49

JGC CATALYSTS & CHEMICALS LTD

1 patent
US11896959B2Feb 13, 2024

Hydrotreating catalyst for hydrocarbon oil, method for producing the same, and method for hydrotreating hydrocarbon oil

JGC CATALYSTS & CHEMICALS LTD0 citations60