Patents by Inventor Yasushi Nakai

Yasushi Nakai 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: 20180276766
    Abstract: An automatic journalizing device includes a collation unit that collates the content of journalizing target detail data which is input by a detail data input unit with the content of already journalized detail data stored in a detail data storage unit, so as to determine whether or not a determination item matches each other, and an automatic journalizing unit that sets the same account title as an account title set for the already journalized detail data, for the journalizing target detail data, in a case where it is determined that matching occurs. By using already journalized detail data for which an account title is already set without using a correspondence table related to a keyword, it is possible to prevent the occurrence of a problem that accurate automatic journalizing cannot be performed since there is no keyword of the correspondence table or a plurality of keywords are included.
    Type: Application
    Filed: March 13, 2018
    Publication date: September 27, 2018
    Inventors: Katsuteru Murakami, Osamu Nagahama, Yasushi Nakai, Rintaro Sonoda, Hiroyuki Omura, Shinji Tokuyama
  • Patent number: 7892640
    Abstract: The present invention provides novel conjugate fibers being excellent in productivity and having good water absorption, antistatic property and cool feeling by contact. The conjugate fibers include a fiber-forming resin such as polyamide, polyester and the like in the sheath portion and a polyether block amide copolymer in the core portion, in which the area ratio of the core portion to the sheath portion is 5/95 to 95/5, and the exposure angle of the core portion to the surface is 5° to 90°. Specifically it is preferable that the area ratio of the core portion to the sheath portion is 10/90 to 90/10, the exposure angle of the core portion to the surface is 5° to 80°, and the crimp ratio is 2 to 30%.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: February 22, 2011
    Assignee: KB Seiren, Ltd.
    Inventor: Yasushi Nakai
  • Publication number: 20100047572
    Abstract: The invention provides a novel conjugated fiber which is excellent in productivity and which has excellent moisture absorption, antistatic property and cool touch feeling, namely, a conjugated fiber which is composed of a sheath made from a fiber-forming resin such as polyamide or polyester and a core made from a polyether block amide copolymer at a core/sheath area ratio of 5/95 to 95/5 and which has an exposure angle of the core to the surface of 5 to 90 DEG. It is still preferable that the core/sheath area ratio be 10/90 to 90/10 and the exposure angle of the core to the surface be 5 to 80 DEG with a percentage of crimp of 2 to 30%.
    Type: Application
    Filed: April 3, 2008
    Publication date: February 25, 2010
    Inventor: Yasushi Nakai
  • Patent number: 6248445
    Abstract: A polyamide/polyurethane composite filament yarn, contains a filament having a polyamide sheath component and a polyurethane eccentric core component exposed, through a neck portion of uniform width, on the surface of the filament. The filament is manufactured by a process comprising inserting, immediately before extruding from a spinneret orifice, a molten polyurethane flow, at an oblique angle from above, into a molten polyamide flow flowing down in a conduit, so that a small part of the polyurethane flow radially projects in a restricted width through the thinnest portion of the polyamide flowing flows down the inner wall of the conduit.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: June 19, 2001
    Assignee: Kanebo, Ltd.
    Inventors: Yukio Yamakawa, Soichiro Tanaka, Koji Itonaga, Yasushi Nakai
  • Patent number: 6048613
    Abstract: The present invention relates to melt-spun polyurethane elastic fiber having a degree of luster of 70 or less, the degree of luster being defined as (I/Io).times.100 where the amount of light reflecting off the surface of the fiber is I and the amount of light reflecting off a standard white plate is Io. On the surface of preferable polyurethane elastic fiber, 10 or more mountain-like protrusions of 0.2 to 5.05 to 110 parts by weight of 5 to 110 parts by weight of .mu.m in height are present every 10 .mu.m fiber in the axial direction.Also, the present invention relates to a process for producing polyurethane elastic fiber, comprising melt-spinning butylene terephthalate-based crystalline polyester (A) and thermoplastic polyurethane (B) wherein before spinning, the compound (A) is melt-mixed with thermoplastic polyurethane (B-1) having isocyanate groups in an amount of 150 to 500 .mu.mol/g.Further, the present invention relates to covered fiber comprising the polyurethane elastic fiber as a core.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: April 11, 2000
    Assignee: Kanebo, Limited
    Inventors: Yukio Yamakawa, Yasushi Nakai, Kiyoshi Yoshimoto, Shigeru Tokutomi, Teruyoshi Kawata
  • Patent number: 4564679
    Abstract: The chromogenic azaphthalide compounds of the invention are of the formula: ##STR1## wherein A is a pyridine ring; R.sub.1 is hydrogen atom or alkyl radicals of from one to 4 carbon atoms; X is hydrogen atom, alkyl radicals of from one to 2 carbon atoms or alkoxy radicals of from one to 2 carbon atoms; R.sub.2 is alkyl radicals of from one to 2 carbon atoms or phenyl radical; R.sub.3 is hydrogen atom or alkyl radicals of from one to 8 carbon atoms.These compounds are particularly suitable for use in providing high quality pressure- or heat-sensitive copying sheets.
    Type: Grant
    Filed: June 16, 1982
    Date of Patent: January 14, 1986
    Assignee: Yamada Chemical Co., Ltd.
    Inventors: Yoshiharu Fujino, Hajime Kawai, Yasushi Nakai, Katsuhiko Tsunemitsu