Inventor
HOTTA KEIICHI
JP10 patents
⚠️ This page may combine multiple inventors who share the name “HOTTA KEIICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASAHI OPTICAL CO LTD
5 patentsUS5576892ANov 19, 1996
Variable power optical system
ASAHI OPTICAL CO LTD20 citations92
US5644426AJul 1, 1997
Strap mounting mechanism for an optical viewing device
ASAHI OPTICAL CO LTD23 citations91
US5305141AApr 19, 1994
Binocular including a preassembled focusing unit
ASAHI OPTICAL CO LTD31 citations91
US5140467AAug 18, 1992
Zooming monocular or binoculars
ASAHI OPTICAL CO LTD13 citations73
US5196959AMar 23, 1993
Binocular with objective lens-barrels rotatable about the optical axes of the objectives
ASAHI OPTICAL CO LTD14 citations72