Patents by Inventor Akihiko Tsuda

Akihiko Tsuda 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: 11167259
    Abstract: The objective of the present invention is to provide a method for producing a fluorinated carbonate derivative in a safe and efficient manner. The method for producing a fluorinated carbonate derivative according to the present invention is characterized in comprising irradiating light on a composition containing a C1-4 halogenated hydrocarbon having one or more kinds of halogen atoms selected from the group consisting of a chlorine atom, a bromine atom and an iodine atom, a fluorine-containing compound having a nucleophilic functional group and a base in the presence of oxygen.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: November 9, 2021
    Assignees: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, AGC Inc.
    Inventor: Akihiko Tsuda
  • Patent number: 11130728
    Abstract: The objective of the present invention is to provide a method for producing a carbonate derivative in a safe and efficient manner. The method for producing a carbonate derivative according to the present invention is characterized in comprising irradiating light on a composition containing a C1-4 halogenated hydrocarbon having one or more kinds of halogen atoms selected from the group consisting of a chlorine atom, a bromine atom and an iodine atom, a nucleophilic functional group-containing compound and the specific base in the presence of oxygen.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: September 28, 2021
    Assignees: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventor: Akihiko Tsuda
  • Publication number: 20200122114
    Abstract: The objective of the present invention is to provide a method for producing a fluorinated carbonate derivative in a safe and efficient manner. The method for producing a fluorinated carbonate derivative according to the present invention is characterized in comprising irradiating light on a composition containing a C1-4 halogenated hydrocarbon having one or more kinds of halogen atoms selected from the group consisting of a chlorine atom, a bromine atom and an iodine atom, a fluorine-containing compound having a nucleophilic functional group and a base in the presence of oxygen.
    Type: Application
    Filed: April 27, 2018
    Publication date: April 23, 2020
    Applicants: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, AGC Inc.
    Inventor: Akihiko TSUDA
  • Publication number: 20200079723
    Abstract: The objective of the present invention is to provide a method for producing a carbonate derivative in a safe and efficient manner. The method for producing a carbonate derivative according to the present invention is characterized in comprising irradiating light on a composition containing a C1-4 halogenated hydrocarbon having one or more kinds of halogen atoms selected from the group consisting of a chlorine atom, a bromine atom and an iodine atom, a nucleophilic functional group-containing compound and the specific base in the presence of oxygen.
    Type: Application
    Filed: April 27, 2018
    Publication date: March 12, 2020
    Applicants: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventor: Akihiko TSUDA
  • Patent number: 8097192
    Abstract: A die opening and closing device for a movable die plate and a fixed die plate includes a toggle link disposed between the movable die plate and a die tightening housing, a cross head for flexing the toggle link, and a motor-driven ball screw penetrating through the die tightening housing and inserted into the cross head, and this die opening and closing device is provided with die thickness adjusting means for adjusting the die thickness S when the die is tightened by extension of the toggle link, and ball screw rotation control means for controlling constant the cracking gap, and a foamed resin molding machine is presented, together with its operating method.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: January 17, 2012
    Assignee: Daisen Industry Co., Ltd.
    Inventors: Akihiko Tsuda, Tomio Nakashima, Tomohiro Oshima, Taizo Mio
  • Publication number: 20090026645
    Abstract: A die opening and closing device for a movable die plate and a fixed die plate includes a toggle link disposed between the movable die plate and a die tightening housing, a cross head for flexing the toggle link, and a motor-driven ball screw penetrating through the die tightening housing and inserted into the cross head, and this die opening and closing device is provided with die thickness adjusting means for adjusting the die thickness S when the die is tightened by extension of the toggle link, and ball screw rotation control means for controlling constant the cracking gap, and a foamed resin molding machine is presented, together with its operating method.
    Type: Application
    Filed: February 28, 2007
    Publication date: January 29, 2009
    Applicant: Daisen Industry Co., Ltd.
    Inventors: Akihiko Tsuda, Tomio Nakashima, Tomohiro Oshima, Taizo Mio
  • Patent number: 5290617
    Abstract: A sliding structure for high load and having high strength as well as sufficient lubricating performance, wherein a solid lubricating material is buried in a sliding surface, an oil reservoir of a predetermined capacity is formed on the reverse of the surface; oil supplying pores extend from the oil reservoir to the sliding surface; and a continuous pore material inserted into the oil supplying pore which provides a limited supply of oil to the sliding surface concerned.
    Type: Grant
    Filed: April 10, 1992
    Date of Patent: March 1, 1994
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Zenichi Mochizuki, Akihiko Tsuda, Masaki Shimada
  • Patent number: 5160476
    Abstract: A polyvinyl chloride resin pipe is produced for use as an inner lining for repairing or reinforcing sewerage pipes or other existing pipes. An airtight packing is disposed in the resin pipe and between a traction device and a reheating device, with the traction device pulling forwards the resin pipe which has been extruded from an extruder. An internal pressure is imparted to the resin pipe by introducing compressed air from a forward end thereof so that the resin pipe is depressed flat while being reeled up on a drum in such a state that an internal space is maintained without failure within the resin pipe. In use, a heating medium is fed into the resin pipe from its end so that it rapidly becomes soft uniform as a whole, whereby a defect-free inner lining is formed in the existing pipes.
    Type: Grant
    Filed: September 11, 1991
    Date of Patent: November 3, 1992
    Assignee: Tsutsunaka Plastic Kogyo Kabushiki Kaisha
    Inventors: Makoto Ijyuin, Akihiko Tsuda, Shinichi Nawata
  • Patent number: 5147697
    Abstract: A polyvinyl choride resin pipe serves as an inner lining material for the existing pipes. The resin pipe is formed of a resin composition which comprises as a main component either a polyvinyl chloride having a degree of polymerization DP of 600 to 1,050, or a mixture of 40 to 60% by weight of a polyvinyl chloride having a lower average degree of polymerization DP.sub.L of 400 to 600 and 60 to 40% by weight of another polyvinyl chloride having a higher average degree of polymerization DP.sub.H of 1,050 to 1,350. The resin composition further comprises 3 to 25 parts by weight of a modifying agent blended with 100 parts by weight of the main component. The modifying agent is composed of MMA- and/or MBS-modifiers.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: September 15, 1992
    Assignee: Tsutsunaka Plastic Kogyo Kabushiki Kaisha
    Inventors: Makoto Ijyuin, Akihiko Tsuda, Shinichi Nawata
  • Patent number: 5086824
    Abstract: A method and system is described for sensing an abnormality in a degassing flow path of a vacuum die casting machine. When a vacuum device is operated to degas a gas in a cavity of a mold, a gas speed flowing through a piping is detected. The gas speed thus detected is compared with the predetermined maximum proper air speed value to determine whether the maximum gas speed value falls into the tolerance limits of the maximum proper air speed value or not. In this comparison, when the detected value departs from the tolerance limits, it is regarded that a clogging has occurred in the degassing system and an alarm is issued.
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: February 11, 1992
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Akihiko Tsuda, Norihiro Iwamoto