Patents by Inventor Hirofumi Iwasaki

Hirofumi Iwasaki 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).

  • Publication number: 20240132050
    Abstract: A vehicle is a series hybrid vehicle that drives drive wheels using a travel motor by utilizing power of a power generation motor, which generates power by being driven by motive power of an internal combustion engine provided with a turbo charger. A method for controlling the vehicle includes executing a fuel cut of the internal combustion engine when excess power is greater than at least power that can be inputted in the system and the internal combustion engine is being supercharged.
    Type: Application
    Filed: February 19, 2021
    Publication date: April 25, 2024
    Inventors: Kazuma Iwasaki, Azusa Kobayashi, Hidekatsu Akiyama, Hirofumi Miyauchi, Ryo Onogawa
  • Patent number: 11359940
    Abstract: To provide a sensor apparatus and sensor system using a low-power input source such as a microbial fuel cell, provided is a sensor apparatus including a microbial fuel cell; a boosting DC-DC circuit that operates based on an input voltage from the microbial fuel cell and boosts the input voltage; a power storage element that stores power output from the boosting DC-DC circuit; and a sensor element that operates based on power output from the power storage element, as well as a sensor system that includes this sensor apparatus and a wireless communication apparatus.
    Type: Grant
    Filed: January 3, 2021
    Date of Patent: June 14, 2022
    Assignee: Asahi Kasei Microdevices Corporation
    Inventors: Masao Awatsu, Hirofumi Iwasaki, Teppei Hayashi
  • Publication number: 20210123776
    Abstract: To provide a sensor apparatus and sensor system using a low-power input source such as a microbial fuel cell, provided is a sensor apparatus including a microbial fuel cell; a boosting DC-DC circuit that operates based on an input voltage from the microbial fuel cell and boosts the input voltage; a power storage element that stores power output from the boosting DC-DC circuit; and a sensor element that operates based on power output from the power storage element, as well as a sensor system that includes this sensor apparatus and a wireless communication apparatus.
    Type: Application
    Filed: January 3, 2021
    Publication date: April 29, 2021
    Inventors: Masao AWATSU, Hirofumi IWASAKI, Teppei HAYASHI
  • Publication number: 20190265080
    Abstract: To provide a sensor apparatus and sensor system using a low-power input source such as a microbial fuel cell, provided is a sensor apparatus including a microbial fuel cell; a boosting DC-DC circuit that operates based on an input voltage from the microbial fuel cell and boosts the input voltage; a power storage element that stores power output from the boosting DC-DC circuit; and a sensor element that operates based on power output from the power storage element, as well as a sensor system that includes this sensor apparatus and a wireless communication apparatus.
    Type: Application
    Filed: February 26, 2019
    Publication date: August 29, 2019
    Inventors: Masao AWATSU, Hirofumi IWASAKI, Teppei HAYASHI
  • Publication number: 20140308482
    Abstract: The purpose of the present invention to provide an adhesive tape that has a feel and texture that is very close to paper tape; that follows curbed surfaces, rough surfaces, and irregular surfaces well; has excellent water resistance; is not susceptible to tearing when removed after the completion of work; and is easily cut by hand. The adhesive tape of the present invention is characterized as follows: a tape base cloth comprises spunbonded thermoplastic long fiber non-woven cloth with a basis weight of 15-60 g/m2 and the tape is embossed in the width direction; a tape substrate sheet is prepared by permeating the tape base cloth with a synthetic resin having a glass transition temperature of no more than 20° C. so that the quantity of synthetic resin after drying is 5-150% by weight of the total basis weight of non-woven cloth; and an adhesive agent is applied to one side of the tape substrate sheet and a release agent to the other side thereof.
    Type: Application
    Filed: November 9, 2012
    Publication date: October 16, 2014
    Applicant: ASAHI KASEI FIBERS CORPORATION
    Inventors: Yasuhiro Masunari, Tetsuo Kurose, Katsuji Omizu, Hirofumi Iwasaki
  • Patent number: 4701365
    Abstract: Disclosed is a formable nonwoven sheet of filaments of a polyester group and having superior forming properties, i.e., a forming processability and a shape retaining property and utilizability, i.e., physical properties and properties during use, produced by controlling a state of bonding between each single filament in the nonwoven sheet, which state of bonding is expressed by a relationship between a needle piercing resistance value and a hooking resistance value in a predetermined range.A formable nonwoven sheet having a smooth surface can be obtained by heat treating an intermediate nonwoven sheet while controlling an area shrinkage of the intermediate nonwoven sheet caused by the heat, by holding the intermediate nonwoven sheet from both sides while a formable nonwoven sheet having a high flexural endurance can be obtained by heat treating the intermediate nonwoven sheet while allowing the intermediate nonwoven sheet to be shrunk by heat from steam or boiling water.
    Type: Grant
    Filed: October 22, 1986
    Date of Patent: October 20, 1987
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventor: Hirofumi Iwasaki
  • Patent number: 4678703
    Abstract: A tenacious polyethylene terephtalate filament nonwoven sheet having at least one smooth filmy surface layer, bulkiness, resistance to fuzzing by friction, and a high tear strength. In the smooth filmy surface, filaments forming the same surface layer are crushed flat and buried with each other at the crossing sections. The average roughness of the smooth filmy surface is 25.mu. or below. Accordingly, the nonwoven sheet has excellent printing effect and resistance to frictional fuzzing. In a layer next to the surface layer, a plurality of filaments adhere closely to each other and practically maintain the original from thereof. Accordingly, the nonwoven sheet has bulkiness and high tear strength.
    Type: Grant
    Filed: March 15, 1985
    Date of Patent: July 7, 1987
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Akio Shibasaki, Hirofumi Iwasaki
  • Patent number: 4578307
    Abstract: Disclosed is a nonwoven sheet consisting of undrawn polyethylene terephthalate filaments of which an outer layer portion of a filament section has a higher orientation and higher crystallization than a center of the filament section, and nonwoven sheets produced by using the above-mentioned nonwoven sheet as an intermediate goods.The above-mentioned undrawn polyethylene terephthalate filament are those in which the filaments have an elongation at breakage of at least 100%, a shrinkage in boiling water of at least 15%, the filament section is a circular section having a radius R, and the average refractive index n.parallel.(0) of the central portion of the filament section and the average refractive index n.parallel.(0.8) of the portion apart by 0.8 R from the center satisfy the following requirements:n.parallel.(0).ltoreq.1.640 and [n.parallel.(0.8)-n.parallel.(0)].gtoreq.6.times.10.sup.-3.
    Type: Grant
    Filed: March 15, 1985
    Date of Patent: March 25, 1986
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Akira Niki, Hirofumi Iwasaki