Patents Assigned to Yamanaka Industry Co., Ltd.
  • Patent number: 5496573
    Abstract: A coffee filter material and bag suitable for providing a high-quality coffee extract, having a nonwoven fabric filter layer which is composed of thermoplastic organic synthetic fibers, satisfies the relationships (1) to (4):3.ltoreq.x.ltoreq.30 (1)y.gtoreq.0.2x (2)1.ltoreq.r.sub.30 (3)andr.sub.70 .ltoreq.50 (4)wherein x is a basis weight (g/m.sup.2) of the woven fabric, y is a cumulative volume value (cm.sup.3 /g) of fine pores in the nonwoven fabric, r.sub.30 is a maximum radius (.mu.m) of the fine pores observed when the volumes of the fine pores are cumulated from the small pore radius side and the cumulative volume value becomes equal to 0.3y, and r.sub.70 is a maximum radium (.mu.m) of the fine pores observed when the volumes of the fine pores are cumulated from the small pore radius side and the cumulative volume value becomes equal to 0.7y, and is capable of absorbing in the wet state thereof at least 0.5 g/g of an oil and fat component from the coffee extract.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: March 5, 1996
    Assignees: Yamanaka Industry Co., Ltd., Kuraray Co., Ltd.
    Inventors: Hiroshi Tsuji, Hiromasa Saisaka, Hideo Murakami, Kaichi Suzuki, Masaaki Fukuchi
  • Patent number: D912526
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: March 9, 2021
    Assignee: YAMANAKA INDUSTRY CO., LTD.
    Inventors: Motonobu Suzuki, Tadashi Motomura
  • Patent number: D941155
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: January 18, 2022
    Assignee: YAMANAKA INDUSTRY CO., LTD.
    Inventors: Motonobu Suzuki, Tadashi Motomura
  • Patent number: D941156
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: January 18, 2022
    Assignee: YAMANAKA INDUSTRY CO., LTD.
    Inventors: Motonobu Suzuki, Tadashi Motomura
  • Patent number: D941676
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: January 25, 2022
    Assignee: YAMANAKA INDUSTRY CO., LTD.
    Inventors: Motonobu Suzuki, Tadashi Motomura