Inventor

YOKOTA HIDEO

JP90 patents

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

YOKOTA HIDEO

CANON KK

Imaging apparatus

Image pickup apparatus

Polarizing beam splitter and an illuminating device provided with the same

Viewfinder device wherein the spacing between the display and the optical system is variable to effect diopter adjustment

Zoom lens of rear focus type

Conversion type varifocal lens system

Apparatus having liquid crystal finder optical system

Object distance measuring system for an optical instrument

Focus defecting system

Projection apparatus utilizing an anamorphic optical system

Cooling system, exposure apparatus having the same, and device manufacturing method

Range finding device

Sharp focus detecting system

Single lens reflex camera

Focusing-in-part lens system

Varifocal type finder

Photographic optical apparatus

Image pickup apparatus

Finder system of high image magnification

View finder optical system

Range detecting device

Photographic lens of the partial focusing type

Gauss type lens

Photographic lens system

Anti-ghost device for optical distance measuring system

Distance measuring device

Range detecting device

Power source switch for use in camera circuit to detect a focused condition

Camera viewfinder

Wide angle photographic lens

Camera with means for coordinating aperture and focus adjustments

Power source switch for use in a camera circuit to detect a focused condition

Focusing screen unit for single lens reflex camera

Single lens reflex camera

High speed focusing telephoto lens

View finder system for a single lens reflex camera

Method for detecting visibility of image of an object and a device therefor

Automatic control device for an electronic flash apparatus

Viewfinder for a single lens reflex camera

Automatic focus adjustment of a camera

RIKEN

Region data editing apparatus, region data editing method, and recording medium

Method and apparatus for three dimensionally displaying eyeground and measuring coordinates thereof

Method and apparatus for analyzing three-dimensional internal structure

Artificial bone forming method by powder lamination method

Method of extraction of region of interest, image processing apparatus, and computer product

TAGAWA KAZUO

Refrigerator oil, compressor oil composition, hydraulic fluid composition, metalworking fluid composition, heat treatment oil composition, lubricant composition for machine tool and lubricant composition

Compressor oil composition

Hydraulic oil composition

NIPPON OIL CO LTD

Composition for lubricating oil

NIPPON MITSUBISHI OIL CORP

Cutting or grinding oil composition