Patents by Inventor Hirofumi Yamanaka

Hirofumi Yamanaka 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: 11185844
    Abstract: An object of the present invention is to provide a carrier for adsorbing organic matter, which achieves both of adsorption ability for organic matter and suppression of pressure increase. The present invention provides a carrier for adsorbing organic matter, comprising a sea-island type solid composite fiber, wherein the pore volume is 0.05 to 0.5 cm3/g and the fiber diameter is 25 to 60 ?m.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: November 30, 2021
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Shungo Kanda, Kaoru Shimada, Shunsuke Komachi, Hiroshi Takahashi, Hirofumi Yamanaka, Masato Masuda
  • Publication number: 20210317599
    Abstract: An actuator fiber is made of a thermoplastic resin and has a coil spring shape. A spring index D/d of 1.7 or more when an average diameter of a coil portion is represented by D and a fiber diameter is represented by d. A glass transition point measured by a differential scanning calorimeter may be 150° C. or lower.
    Type: Application
    Filed: September 6, 2019
    Publication date: October 14, 2021
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Hirofumi YAMANAKA, Kirita SATO, Hidekazu KANO
  • Publication number: 20210213421
    Abstract: An object of the present invention is to provide a carrier for adsorbing organic matter, which achieves both of adsorption ability for organic matter and suppression of pressure increase. The present invention provides a carrier for adsorbing organic matter, comprising a sea-island type solid composite fiber, wherein the pore volume is 0.05 to 0.5 cm3/g and the fiber diameter is 25 to 60 ?m.
    Type: Application
    Filed: July 5, 2019
    Publication date: July 15, 2021
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Shungo KANDA, Kaoru SHIMADA, Shunsuke KOMACHI, Hiroshi TAKAHASHI, Hirofumi YAMANAKA, Masato MASUDA
  • Publication number: 20210154642
    Abstract: An object of the present invention is to provide a ligand-immobilized sea-island composite fiber in which generation of fine particles due to peeling of a sea component from an island component and generation of fine particles due to destruction of a fragile sea component are both suppressed. The present invention provides a sea-island composite fiber comprising a sea component and island components, in which a value (L/S) obtained by dividing the average total length (L) of the perimeter of all island components in a cross section perpendicular to the fiber axis by the average cross-sectional area (S) of the cross section is from 1.0 to 50.0 ?m?1, a distance from the surface to the outermost island component is 1.9 ?m or less, and an amino group-containing compound is covalently bonded to a polymer constituting the sea component at a charge density of 0.1 ?mol or more and less than 500 ?mol per 1 gram dry weight.
    Type: Application
    Filed: August 31, 2018
    Publication date: May 27, 2021
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Ryo MATSUNAGA, Junichi KASUYA, Yoshiyuki UENO, Hirofumi YAMANAKA, Yasunori KANEMORI, Masato MASUDA, Joji FUNAKOSHI
  • Publication number: 20200325601
    Abstract: An object of the present invention is to provide a bulky yarn made of synthetic fibers, which is suppressed in tanglement between filaments while having a loop shape in the surface layer thereof, and has a soft texture and is light and excellent in heat retention properties while being good in handleability in high-order processing. The present invention provides a bulky yarn made of synthetic fibers, including: a sheath yarn having a three-dimensional crimped structure; and a core yarn twisted with the sheath yarn to fix the sheath yarn, wherein the sheath yarn is not substantially broken and continuously forms loops.
    Type: Application
    Filed: June 29, 2020
    Publication date: October 15, 2020
    Applicant: Toray Industries, Inc.
    Inventors: Masato Masuda, Takashi Shibata, Hirofumi Yamanaka
  • Publication number: 20190136421
    Abstract: A bulky yarn includes a sheath yarn having continuously formed loops without any breakages; and a core yarn that substantially fixes the sheath yarn by being interlaced with the sheath yarn, wherein a number of loops protruding from a yarn surface layer by not less than 3.0 mm is 1 to 30 loops/mm, an elastic modulus is not greater than 80 cN/dtex, and an extension recovery rate at a time of 10% extension recovery is not less than 50%.
    Type: Application
    Filed: April 20, 2017
    Publication date: May 9, 2019
    Applicant: Toray Industries, Inc.
    Inventors: Masato Masuda, Takashi Shibata, Hirofumi Yamanaka
  • Publication number: 20180216261
    Abstract: An object of the present invention is to provide a bulky yarn made of synthetic fibers, which is suppressed in tanglement between filaments while having a loop shape in the surface layer thereof, and has a soft texture and is light and excellent in heat retention properties while being good in handleability in high-order processing. The present invention provides a bulky yarn made of synthetic fibers, including: a sheath yarn (1) having a three-dimensional crimped structure; and a core yarn (2) twisted with the sheath yarn (1) to fix the sheath yarn (1), wherein the sheath yarn (1) is not substantially broken and continuously forms loops.
    Type: Application
    Filed: July 20, 2016
    Publication date: August 2, 2018
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Masato Masuda, Takashi Shibata, Hirofumi Yamanaka
  • Patent number: 7438245
    Abstract: Disclosed is a milling and classifying apparatus, adapted to produce toner fine particles, comprising a collision mill, and an air classifier, wherein the collision mill comprises a jet nozzle room, a path, a collision plate, and a collision member mounted to a support of the collision plate at downstream of the collision plate, the air classifier comprises a dispersion room and a classification room, the classification room is disposed below the dispersion room, and a flow stabilizer is arranged at a central suction of the separator core to control swirl stream generated within the classification room so as to centrifuge the powder into coarse particles and fine particles by action of the swirl stream.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: October 21, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Masahiro Kawamoto, Kohta Wakimoto, Kohji Kubota, Mamoru Kawaguchi, Yoshiyuki Okegawa, Hideyuki Ueda, Masayuki Kakimoto, Hiroaki Sugiyama, Tomoyuki Yamada, Yuuichi Kohyama, Masato Kobayashi, Fumio Nishide, Kenkoh Degura, Hirofumi Yamanaka, Tohru Suganuma, Shoji Watanabe, Ikuo Tasaki
  • Publication number: 20060032952
    Abstract: Disclosed is a milling and classifying apparatus, adapted to produce toner fine particles, comprising a collision mill, and an air classifier, wherein the collision mill comprises a jet nozzle room, a path, a collision plate, and a collision member mounted to a support of the collision plate at downstream of the collision plate, the air classifier comprises a dispersion room and a classification room, the classification room is disposed below the dispersion room, and a flow stabilizer is arranged at a central suction of the separator core to control swirl stream generated within the classification room so as to centrifuge the powder into coarse particles and fine particles by action of the swirl stream.
    Type: Application
    Filed: July 12, 2005
    Publication date: February 16, 2006
    Inventors: Masahiro Kawamoto, Kohta Wakimoto, Kohji Kubota, Mamoru Kawaguchi, Yoshiyuki Okegawa, Hideyuki Ueda, Masayuki Kakimoto, Hiroaki Sugiyama, Tomoyuki Yamada, Yuuichi Kohyama, Masato Kobayashi, Fumio Nishide, Kenkoh Degura, Hirofumi Yamanaka, Tohru Suganuma, Shoji Watanabe, Ikuo Tasaki