Patents by Inventor Masahito Takagi

Masahito Takagi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6756460
    Abstract: The present invention provides: a novel water-soluble copolymer which is excellent in performance for uses, such as detergent builders, pigment dispersants, and scale inhibitors. In addition, the present invention provides: a novel liquid detergent builder which has extremely excellent compatibility, high transparency when a liquid detergent composition comprises it, and excellent detergency; and a novel liquid detergent composition comprising the liquid detergent builder.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: June 29, 2004
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Takuya Saeki, Junichi Nakamura, Yoshikazu Fujii, Masahito Takagi, Shigeru Yamaguchi
  • Patent number: 6684137
    Abstract: A traffic accident recording system, wherein a recording unit is provided along a road, comprising a TV camera for continously obtaining visual images of a certain section of the road and a storage unit for continuously storing the visual images from the TV camera, and an accident recognition unit provided in a vehicle which upon occurrence of an accident transmits a trigger signal to the recording unit so that the storage unit retains visual images of the section of the road whereat the accident occurred at specified time durations before, during and after the occurrence of the accident. Thereafter, the stored visual images can be accessed and stored for later use. Also devices are provided for periodically discarding visual images not used.
    Type: Grant
    Filed: December 29, 2001
    Date of Patent: January 27, 2004
    Assignees: Yokogawa Electric Corporation, Massachusetts Institute of Technology
    Inventors: Masahito Takagi, Ichiro Masaki
  • Publication number: 20030125853
    Abstract: A traffic accident recording system, wherein a recording unit is provided along a road, comprising a TV camera for continously obtaining visual images of a certain section of the road and a storage unit for continuously storing the visual images from the TV camera, and an accident recognition unit provided in a vehicle which upon occurrence of an accident transmits a trigger signal to the recording unit so that the storage unit retains visual images of the section of the road whereat the accident occurred at specified time durations before, during and after the occurrence of the accident. Thereafter, the stored visual images can be accessed and stored for later use. Also devices are provided for periodically discarding visual images not used.
    Type: Application
    Filed: December 29, 2001
    Publication date: July 3, 2003
    Inventors: Masahito Takagi, Ichiro Masaki
  • Patent number: 6535118
    Abstract: A priority controlled network wherein a plurality of sensor terminals, at least one display terminal, and control circuit are interconnected by a network, and within each sensor terminal is a priority determining unit to which are supplied data from one or more sensors in the sensor terminal, and parameters controlling the priority determining from the control circuit, whereby priority determining by said priority determining unit is obtained by using said data and said parameters so that a particular priority value is determined for each of the plurality of sensor terminals and selected priority value data are displayed in the at least one display terminal and capacity of said network is optimally used where more than one display terminal is provided.
    Type: Grant
    Filed: December 29, 2001
    Date of Patent: March 18, 2003
    Assignees: Yokogawa Electric Corporation, Massachusetts Institute of Technology
    Inventors: Masahito Takagi, Ichiro Masaki
  • Patent number: 6472978
    Abstract: An improved traffic accident preventing system to alarm both a driver on vehicle and pedestrian each other using a radio communication unit when they are located close. This system also provides a traffic monitoring and control system using communication between vehicle, pedestrian with communication unit and radio unit equipped by roadside, in which a traffic management center can send information to a specific vehicle and pedestrian with communication unit, and also receive information from them.
    Type: Grant
    Filed: November 24, 2000
    Date of Patent: October 29, 2002
    Assignees: Yokogawa Electric Corporation, Massacusetts Institute of Technology
    Inventors: Masahito Takagi, Ichiro Masaki
  • Patent number: 6447696
    Abstract: The present invention provides: a novel grafted polymer which has good hydrophilicity and is excellent in the adsorbency and the dispersibility; and a scale inhibitor and a detergent additive, both of which involve the use of this grafted polymer.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: September 10, 2002
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Masahito Takagi, Shigeru Yamaguchi
  • Patent number: 6441748
    Abstract: A road surface monitoring system for monitoring the condition of a road surface wherein at least one sensor unit is interchangeably provided in a sealed container disposed below the road surface and a power source is provided to power the sensor unit, and a communications device is provided to obtain measurement and/or monitoring data from the at least one sensor unit and to provide control signals to the at least one sensor unit, whereby an inexpensive and readily maintainable system is provided.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: August 27, 2002
    Assignees: Yokogawa Electric Corporation, Massachusetts Institute of Technology
    Inventors: Masahito Takagi, Ichiro Masaki
  • Patent number: 6441102
    Abstract: The present invention provides a novel amino-group-containing polymer (salt) and a production process therefor wherein the amino-group-containing polymer (salt) is a product by a process including the step of introducing amino groups into a grafted polymer having a polyether skeleton, and can make good use of the reactivity or cationic property of at least primary amino groups and further, according to circumstances, secondary amino groups, and further can display various performances, such as curability useful for various uses and adsorbency onto films or fibers.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: August 27, 2002
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Ichimoto Akasaki, Masahito Takagi, Takuya Saeki, Koichiro Saeki
  • Publication number: 20020049147
    Abstract: The present invention provides: a novel water-soluble copolymer which is still more excellent in performance for uses, such as detergent builders, pigment dispersants, and scale inhibitors. In addition, the present invention provides: a novel liquid detergent builder which has extremely excellent compatibility, high transparency when a liquid detergent composition comprises it, and very excellent detergency; and a novel liquid detergent composition comprising the liquid detergent builder.
    Type: Application
    Filed: August 16, 2001
    Publication date: April 25, 2002
    Inventors: Takuya Saeki, Junichi Nakamura, Yoshikazu Fujii, Masahito Takagi, Shigeru Yamaguchi
  • Publication number: 20010014722
    Abstract: The present invention provides a novel amino-group-containing polymer (salt) and a production process therefor wherein the amino-group-containing polymer (salt) is a product by a process including the step of introducing amino groups into a grafted polymer having a polyether skeleton, and can make good use of the reactivity or cationic property of at least primary amino groups and further, according to circumstances, secondary amino groups, and further can display various performances, such as curability useful for various uses and adsorbency onto films or fibers.
    Type: Application
    Filed: February 8, 2001
    Publication date: August 16, 2001
    Applicant: Nippon Shokubai Co., Ltd.
    Inventors: Ichimoto Akasaki, Masahito Takagi, Takuya Saeki, Koichiro Saeki
  • Patent number: 6166149
    Abstract: The invention provides: 1) a composition comprising a hydrophilic graft polymer of 60 to 98 wt %, a polyether compound of 20 to 40 wt %, and an unsaturated carboxylic acid type polymer of 0 to 5 wt %; 2) a polymer which is obtained by graft-polymerizing a monoethylenically unsaturated monomer onto a polyether compound having a repeating unit of --RCH--CH.sub.2 --O-- of 30 mol % or more of the polyether compound, and has a purity of at least 75%; and 3) a scale inhibitor comprising a polymer which is obtained by graft-polymerizing a monoethylenically unsaturated monomer onto a polyether compound having ethylene oxide of 80 mol % or more as a structural unit, and has a hydroxyl group value of 30 mgKOH/g or more and an acid value of 200 mgKOH/g or more.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: December 26, 2000
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Shigeru Yamaguchi, Masahito Takagi, Takuya Saeki
  • Patent number: 5600276
    Abstract: An improved semiconductor integrated circuit comprising a substrate, at least one first semiconductor resistor, and at least one second semiconductor resistor, with the the first and second resistors defining a resistance ratio, and a bootstrap electrode at a desired potential, wherein variation in resistance value of the first resistor is determined by the potential difference between the first resistor and the substrate, and variation in resistance value of the second resistor is determined by the potential at the boot-strap electrode, and wherein the variation in the resistance value of the second resistor acts to cancel out the variation in the first resistor resistance value, whereby an accurate device is produced by the invention.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: February 4, 1997
    Assignee: Yokogawa Electric Corporation
    Inventors: Makoto Imamura, Masahito Takagi
  • Patent number: 5523380
    Abstract: A polymer comprising an .alpha.-glycol structure unit ##STR1## and a carboxylic acid-based structure unit ##STR2## provides superior results with respect to dispersibility, a chelating ability and a viscosity-stabilizing effect and is useful as a detergent builder, pigment- and cement-dispersing agents, a hydrogen peroxide stabilizer and a gas barrier agent. This polymer can further comprise the following lactone structure unit. ##STR3## This polymer can be produced by copolymerizing a conjugated diene monomer and a carboxylic acid-based monomer and oxidizing a copolymer obtained.
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: June 4, 1996
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hideyuki Tahara, Hiroshi Itoh, Keiji Kofuji, Masahito Takagi
  • Patent number: 5298570
    Abstract: The invention provides biodegradable crosslinked polymers, which have a chelating effect and a dispersing effect to disperse an oily substance and an inorganic substance hardly soluble in water and are excellent in dispersion into water. The crosslinked polymers comprise; an ingredient of molecular weight 5,000 or less in 50% by weight, a bond having at least one of a group (II) represented by the chemical formula --CO--O-- and a group (III) represented by the chemical formula --CO--NH-- as a composition unit between main chains having a water-soluble oligomer structure having the functional group (I) represented by the general formula --COOM (here, M denotes anyone of a hydrogen atom, monovalent metal, divalent metal, trivalent metal, an ammonium group and organic amine group.), and showing a viscosity of 1,000 cP or less at 20.degree. C. by a 20% by weight aqueous solution of the crosslinked polymer.
    Type: Grant
    Filed: August 20, 1992
    Date of Patent: March 29, 1994
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hideyuki Tahara, Hiroshi Ito, Masahito Takagi, Yoshio Irie, Keishi Tsuboi, Shigeru Yamaguchi