Inventor

IWASAKI KEISUKE

JP72 patents

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

IWASAKI KEISUKE

TODA KOGYO CORP

Colorant for ink-jet printing ink, ink-jet printing ink, aqueous pigment dispersion containing the colorant, and organic and inorganic composite particles

High-density acicular hematite particles, non-magnetic undercoat layer and magnetic recording medium

Titanium oxide particles, substrate for magnetic recording medium and magnetic recording medium using the same

Hematite particles and magnetic recording medium having a non-magnetic under-coat layer containing hematite (Fe2 O3) particles.

Composite particles, process for producing the same, and pigment, paint and resin composition using the same

Composite particles, and tread rubber composition, paint and resin composition using the same

Organic and inorganic composite pigments, and paint and resin composition using the same

Non-magnetic composite particles, process for producing the same and magnetic recording medium using the same

Non-magnetic particles for non-magnetic undercoating layer of magnetic recording medium, non-magnetic undercoating layer containing the same, and magnetic recording medium having the undercoating layer

Magnetic iron oxide particles

Non-magnetic undercoat layer for magnetic recording medium, magnetic recording medium and non-magnetic particles

Coloring composition for color filter containing colorant and color filter using the same

Black magnetic acicular composite particles for magnetic recording medium and magnetic recording medium using the same

Color toner

Black colorant for ink-jet printing ink, ink-jet printing ink, and aqueous pigment dispersion containing the black colorant

Titanium oxide particles, substrate for magnetic recording medium and magnetic recording medium using the same

Particles for non-magnetic undercoat layer of magnetic recording medium, method thereof and magnetic recording medium

Magnetic recording medium, non-magnetic acicular black iron-based composite particles and process for producing the particles

Magnetic recording medium

Magnetic recording medium and substrate therefor

Magnetic composite particles for black magnetic toner and black magnetic toner using the same

Non-magnetic undercoating layer for magnetic recording medium, magnetic recording medium and non-magnetic particles

Magnetic paint and process for producing the same

Black toner

Non-magnetic composite particles, process for producing the same and magnetic recording medium using the same

Magnetic recording medium, non-magnetic acicular black iron-based composite particles and process for producing the particles

Black magnetic acicular containing composite particles magnetic recording medium

Black plate-shaped ferrite composite particles with magnet oplumbite structure and magnetic recording medium using the same

Acicular hematite particles having a low sodium content and their use in a magnetic recording medium

Magnetic recording medium containing non-magnetic hematite particles as an undercoat layer

SHARP KK

Three-dimensional display apparatus with a wide viewing angle and increased resolution

Display device

Display control device and reproduction display device for electronic books

Image processing device and image processing method

Image processing apparatus for combining differently corrected images

Image synthesizer

Display device

Display control device and reproduction display device for electronic books

Copyright management apparatus

Image compression device and image decompressing device, and computer-readable recorded medium on which program for allowing computer to execute image compressing method and image decompressing method

Image processing device

Data base system

Data distribution system and data selling apparatus therefor, data retrieving apparatus, duplicated data detecting system, and data reproduction apparatus

Communication system, terminal device, reproduction program, storage medium storing the reproduction program, server machine, server program, and storage medium storing the server program

Image encoding device

Stereoscopic image capture device

Data base system

Data processing device and method of processing data

Image encoding device and method therefor, image decoding apparatus and method therefor, and computer-readable recorded medium on which image encoding program and image decoding program are recorded

TODA KOGYO CORORATION

Rectangular parallelopipedic lepidocrocite particles and magnetic recording medium containing the particles