Inventor

SAKAI YOSHIHIRO

JP66 patents

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

SAKAI YOSHIHIRO

RICOH KK

Image forming apparatus with display device for displaying before and after image processing data

Color recording apparatus

Device for regenerating printed sheet-like recording medium

Device for regenerating printed sheet-like recording medium

Device for transporting sheet members using an alternating voltage

Optical encoder, motor driver and image forming apparatus

Image forming apparatus including rotary member speed detection mechanism

Image forming apparatus for fixing a toner image at a first speed or at a second speed

Color image forming apparatus which accelerates or decelerates the developing sleeves at a constant rate

Color copying apparatus

Method of and apparatus for producing duplicates in color

Method of controlling copying machine operation

Multicolored image forming apparatus

Device for regenerating printed sheet-like recording medium

Image forming apparatus having a separate black developer stored for a color image

Rotary multicolor developing apparatus

Image forming apparatus cleaning an intermediate transfer member carrying a concurrently existing plurality of toner image pages

Portable image forming device

Mechanism for driving photosensitive drums

Belt driving apparatus, image forming apparatus, belt driving method, and computer-readable medium for driving a belt

Drive control method, drive control device, belt apparatus, image forming apparatus, image reading apparatus, computer product

Device and method for belt speed control, and image forming apparatus

Belt device, image forming apparatus, and method to control belt speed

Endless belt unit, image forming apparatus, and method of driving and controlling belt member

Color image forming apparatus and method

Color electrophotographic copying process

Image reading device and image forming apparatus including the image reading device

Composite copying method and color copier for practicing the same

Color copier

Image forming apparatus using a synchronized transfer medium driver

Image forming apparatus

Optical system for color copier

FUJITSU LTD

Speech coding system having codebook storing differential vectors between each two adjoining code vectors

Echo canceller with short processing delay and decreased multiplication number

Speech signal coding system wherein non-periodic component feedback to periodic excitation signal source is adaptively reduced

Speaking apparatus having handfree conversation function

Echo path transition detection

Speech signal coding and decoding system transmitting allowance range information

KAO CORP

Bulky sheet material having three-dimensional protrusions

Applicator for the use of sanitary goods such as a tampon, etc.

ASAGICREATE CO LTD

Surface light source and electrically illuminated signboard

Surface light source and electrically illuminated signboard

BRIDGESTONE TIRE CO LTD

Pneumatic tire having anti-transverse skid property for vehicles which run at high speed under heavy load

Noiseless lug tires

NHK SPRING CO LTD

Method for manufacturing a taper spring

Process of manufacturing a taper leaf spring and its device

MITSUI CHEMICALS INC

Corrosion-proof transparent heater panels and preparation process thereof

SONY CORP

Electrical device for charging batteries

NEC CORP

Magnetic head positioning mechanism having electrical wiring plated thereupon

YASKAWA DENKI SEISAKUSHO KK

Encoder