Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Akira Isogai

Akira Isogai, Tokyo JP

Patent application numberDescriptionPublished
20100233481CELLULOSE NANOFIBER PRODUCTION METHOD OF SAME AND CELLULOSE NANOFIBER DISPERSION - The cellulose nanofiber production method of the present invention comprises an oxidation treatment step for oxidizing native cellulose in a neutral or acidic reaction solution containing an N-oxyl compound and an oxidizing agent that oxidizes aldehyde groups, and a dispersion step for dispersing the native cellulose in a medium following the oxidation treatment step. According to the production method of the present invention, a cellulose nanofiber is provided that has long fibers and demonstrates high strength.09-16-2010
20100282422PROCESSES FOR PRODUCING CELLULOSE NANOFIBERS, CELLULOSE OXIDATION CATALYSTS AND METHODS FOR OXIDIZING CELLULOSE - The present invention aims to provide a process for producing cellulose nanofibers using a 4-hydroxy TEMPO derivative less expensive than TEMPO and a process capable of rapidly producing homogeneous cellulose nanofibers. Wood cellulose can be efficiently converted into nanofibers by a process for producing cellulose nanofibers comprising treating a cellulosic material with an oxidizing agent in water in the presence of a cellulose oxidation catalyst comprising an N-oxyl compound represented by formula 1 below:11-11-2010
20100316863GAS BARRIER MATERIAL - Provided is a material for gas barrier containing cellulose fibers having an average fiber diameter of not more than 200 nm, wherein the content of the carboxyl group in a cellulose composing the cellulose fiber is 0.1 to 2 mmol/g. A molded composite having gas barrier properties such as high oxygen barrier properties can be produced by applying the material for gas barrier on a substrate and drying.12-16-2010
20110008638PAPERMAKING ADDITIVE AND PAPER CONTAINING THE SAME - A papermaking additive comprising cellulose nanofibers whose aqueous solution at a concentration of 2% (w/v) has a B-type viscosity (60 rpm, 20° C.) of 500 to 7000 mPa·s, preferably 500 to 2000 mPa·s is used to prepare a paper having improved air resistance and smoothness. This additive is prepared by oxidizing a cellulosic material with an oxidizing agent in the presence of (1) N-oxyl compound (s) and (2) bromide, iodide or a mixture thereof to prepare oxidized cellulose, and finely grinding the oxidized cellulose in a wet condition to convert the oxidized cellulose into nanofibers.01-13-2011

Akira Isogai, Anjo-Shi JP

Patent application numberDescriptionPublished
20080243351Cruise control system for determining object as target for cruise control - In a cruise control system installed in a vehicle, a monitoring unit monitors a region predetermined in front of the vehicle when the vehicle is located on a lane of a road. An instruction input unit is configured to allow a driver of the vehicle to input an instruction indicative of driver's recognized information in front of the vehicle. A target determining unit executes determination of a target for adjusting an interval with respect thereto based on a result of the monitor and on the instruction when the instruction is input from the instruction input unit thereto.10-02-2008
20080288150Vehicle control apparatus - The vehicle control apparatus includes a control section computing a command value indicative of acceleration/deceleration behavior to be taken by a vehicle, and an acceleration/deceleration controller controlling acceleration and deceleration of the vehicle by use of an acceleration/deceleration actuator on the basis of the command value. The acceleration/deceleration controller transmits driver-operated acceleration data indicative of an acceleration demand caused by operation by a driver of the vehicle, and the control section computing the command value at least according to the driver-operated acceleration data.11-20-2008
20080312834Vehicle-use collision mitigation apparatus - The vehicle-use collision mitigation apparatus includes a function of calculating a TTC indicative of a time remaining before collision with a forward obstacle on the basis of the distance to this obstacle and the reference speed therebetween, a function of alarming a driver of the vehicle of presence of a risk of collision with the obstacle if the TTC is shorter than a predetermined first time, a function of increasing a braking force generated by a braking operation performed by the driver if the TTC is shorter than a predetermined second time not longer than the predetermined first time, and a function of automatically generating a braking force if the TTC is shorter than a predetermined third time shorter than the predetermined first time. The alarming function is configured to make an alarm for a driver of a following vehicle that the preceding vehicle may decelerate abruptly.12-18-2008

Akira Isogai, Anjo JP

Patent application numberDescriptionPublished
20080258668Stator position adjustment method, motor drive device and stator position adjustment system - A stator position adjustment method for a motor drive device that includes a motor case, a rotor shaft supported by the motor case in order to rotate a rotor inside the motor case, and a stator disposed at an outer circumference of the rotor concentrically with the rotor and having a configuration in which the stator is tightened and secured to the motor case by a tightening unit that tightens the stator along a rotor axis. The method includes the steps of setting a first tolerance range as a maximum tolerance range of a stator axis in which a first gap is formed between an outer circumference surface of the stator and an inner circumference surface of the motor case; measuring a position of the stator axis; and adjusting the position of the stator axis within the first tolerance range based on a measured position of the stator axis.10-23-2008