Inventor

HIRAYAMA YOSHIKAZU

JP8 patents

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

NIKON CORP

3 patents

US7778508B2Aug 17, 2010

Image display optical system, image display unit, illuminating optical system, and liquid crystal display unit

NIKON CORP168 citations97

US9395525B2Jul 19, 2016

Catadioptric imaging lens

NIKON CORP1 citations51

US9535240B2Jan 3, 2017

Zoom optical system

NIKON CORP0 citations40

ZANAVY INFORMATICS KK

3 patents

US5422639AJun 6, 1995

Navigation equipment which determines current position dependent on difference between calculated value of self-contained navigation and measured value of radio navigation

ZANAVY INFORMATICS KK31 citations92

US6950797B1Sep 27, 2005

Voice reference apparatus, recording medium recording voice reference control program and voice recognition navigation apparatus

ZANAVY INFORMATICS KK6 citations62

US7295923B2Nov 13, 2007

Navigation device and address input method thereof

ZANAVY INFORMATICS KK3 citations61

HITACHI LTD

1 patent

US5311173AMay 10, 1994

Navigation system and method using map data

HITACHI LTD168 citations98

ZANAVI INFORMATICS CORP

1 patent

US6708150B1Mar 16, 2004

Speech recognition apparatus and speech recognition navigation apparatus

ZANAVI INFORMATICS CORP143 citations95