Inventor

SASAGAWA KATSUYOSHI

JP71 patents

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

SASAGAWA KATSUYOSHI

MITSUI TOATSU CHEMICALS

Mercapto compound, a high refractive index resin and lens and a process for preparing them

Mercapto compound, a high refractive index resin and lens and a process for preparing them

High-refractivity plastic lens resin formed by reacting at least one polyisocyanate with at least one polythiol

Plastic lenses having a high-refractive index, process for the preparation thereof and casting polymerization process for preparing sulfur-containing urethane resin lens and lens prepared thereby

Composition for urethane-base plastic lens, urethane-base plastic lens obtained from the composition, and process for the production of the plastic lens

Laminated transparent plastic material and polymerizable monomer

Casting epoxy resin, polythiol and releasing agent to form lens

Mercapto compound, its preparation process, and sulfur-containing urethane resins and lenses using the same

Resin for urethane lenses, lenses comprising the resin, and a process for preparation of the resin and the lenses

S-alkyl thiocarbamate base resin, plastic lens comprising the resin, and process for making the lens

Optical recording method and media therefor

Resin for high-refractivity lenses and lenses made of same resin

Polypropylene composition containing a 1.3,2.4-di(alkylbenzylidene) sorbitol

Plastic lenses having a high-refractive index, process for the preparation thereof and casting polymerization process for preparing sulfur containing urethane resin lens and lens prepared thereby

Low-hygroscopic sulfur-containing urethane resin, coating material and adhesive

High surface hardness transparent resin prepared from a compound having at least one isopropenyl phenyl group

High-refractivity plastic lens resin formed from a polyisocyanate and a polythiol

Highly-refractive plastic lens and process for making the lens

Resin for plastic lens having high-refractive index, lens comprising the resin, and method for preparation of the lens

Process for molding a highly-refractive plastic lens

Polyurethane base lens resin, plastic lens comprising the resin and preparation method of the lens

Monomer of carbonate ester having isopropenylphenyl group

Composition for optical materials and use thereof

Composition for optical materials and use thereof

High-speed polymerizable resin composition and lenses obtained therefrom

Polymerizable monomer useful for the preparation of high hardness transparent resins

Optical lens comprised of high surface hardness transparent resin

High refractive index plastic lens and composition therefor

OLYMPUS OPTICAL CO

Endoscope shape detecting apparatus wherein form detecting processing is controlled according to connection state of magnetic field generating means

System for detecting the shape of an endoscope using source coils and sense coils

Endoscope shape detecting apparatus wherein form detecting processing is controlled according to connection state of magnetic field generating means

Electronic endoscope apparatus with signal validity monitor

Electronic-type endoscope system having capability of setting AGC variation region

Electronic endoscope system provided with a means of imaging frozen pictures having few picture image smears

Electronic endoscope apparatus outputting ternary drive signal

Endoscope automatic light control apparatus and endoscope apparatus making use of the same

Electronic endoscope whereby the position of the insertable part can be known by a transmitted light outside a body

Endoscope output signal control device and endoscope apparatus making use of the same

Electronic endoscope apparatus capable of driving solid state imaging devices having different characteristics

Electronic endoscopic apparatus isolated by differential type drive means

Medical image filing system enabling registration and retrieval of a plurality of medical images

Electronic endoscope apparatus provided with a movement detecting means

Electronic endoscope apparatus provided with a plurality of endoscopes having solid state imaging devices with at least one identical pixel forming element

Static-image signal generation apparatus using fuzzy theory

Electronic endoscope system provided with a means of imaging frozen pictures having few picture image smears

Electronic endoscope apparatus with CCD output circuit of positive polarity

OLYMPUS CORP

Capsule endoscope and a capsule endoscope system

System for detecting the shape of an endoscope using source coils and sense coils

Intra-subject position display system

OZAWA HIROSHI

Optical recording medium