Patents by Inventor Kenji Nakama

Kenji Nakama 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: 6953614
    Abstract: A transfer sheet for an ink jet printer comprises a support, and a transfer layer which is capable of separating from the support and contains a hot-melt adhesive particle, and the hot-melt adhesive particle comprises a first porous hot-melt adhesive fine particle having an oil absorption of not less than 50 ml/100 g. The transfer layer may further comprise a second hot-melt adhesive fine particle having an oil absorption of less than 50 ml/100 g, a film-forming resin component, and a dye fixing agent. The hot-melt adhesive fine particle may comprise a nylon fine particle, and the average particle size thereof may be 1 to 100 mm.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: October 11, 2005
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Kazuo Notsu, Kenji Nakama, Hideki Nakanishi
  • Publication number: 20040081774
    Abstract: A transfer sheet for an ink jet printer comprises a support, and a transfer layer which is capable of separating from the support and contains a hot-melt adhesive particle, and the hot-melt adhesive particle comprises a first porous hot-melt adhesive fine particle having an oil absorption of not less than 50 ml/100 g. The transfer layer may further comprise a second hot-melt adhesive fine particle having an oil absorption of less than 50 ml/100 g, a film-forming resin component, and a dye fixing agent. The hot-melt adhesive fine particle may comprise a nylon fine particle, and the average particle size thereof may be 1 to 100 mm.
    Type: Application
    Filed: October 20, 2003
    Publication date: April 29, 2004
    Applicant: Daicel Chemical Industries, Ltd.
    Inventors: Kazuo Notsu, Kenji Nakama, Hideki Nakanishi
  • Patent number: 6716493
    Abstract: A transfer sheet for an ink jet printer comprises a support, and a transfer layer which is capable of separating from the support and contains a hot-melt adhesive particle, and the hot-melt adhesive particle comprises a first porous hot-melt adhesive fine particle having an oil absorption of not less than 50 ml/100 g. The transfer layer may further comprise a second hot-melt adhesive fine particle having an oil absorption of less than 50 ml/100 g, a film-forming resin component, and a dye fixing agent. The hot-melt adhesive fine particle may comprise a nylon fine particle, and the average particle size thereof may be 1 to 100 mm.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: April 6, 2004
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Kazuo Notsu, Kenji Nakama, Hideki Nakanishi
  • Patent number: 6565695
    Abstract: The transfer sheet comprises a support and a transfer layer capable of separating from the support and of fixing a toner image formed by an electrophotographic printer, wherein an average value of a surface roughness of the transfer layer is 0.5 to 3.5 &mgr;m. The transfer layer may comprise a thermoplastic resin and a fine particle. A weight ratio of the thermoplastic resin to the fine particle is about 50/50 to 99/1. The thermoplastic resin may be a thermoplastic polyurethane-series resin, and the fine particle may be a polyethylene fine particle having a mean particle size of about 1 to 100 &mgr;m.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: May 20, 2003
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Tatsuo Takeuchi, Yukio Watanabe, Kenji Nakama, Shinichi Morisuna
  • Publication number: 20020045031
    Abstract: The transfer sheet comprises a support and a transfer layer capable of separating from the support and of fixing a toner image formed by an electrophotographic printer, wherein an average value of a surface roughness of the transfer layer is 0.5 to 3.5 &mgr;m. The transfer layer may comprise a thermoplastic resin and a fine particle. A weight ratio of the thermoplastic resin to the fine particle is about 50/50 to 99/1. The thermoplastic resin may be a thermoplastic polyurethane-series resin, and the fine particle may be a polyethylene fine particle having a mean particle size of about 1 to 100 &mgr;m.
    Type: Application
    Filed: February 28, 2001
    Publication date: April 18, 2002
    Inventors: Tatsuo Takeuchi, Yukio Watanabe, Kenji Nakama, Shinichi Morisuna
  • Patent number: 5767205
    Abstract: A polyacetal resin is blended with a copolymer of styrene with 1-(1-isocyanato-1-methylethyl)-3-(1-methylethenyl)benzene to prepare a resin composition which does not cause phase separation, has an excellent extrusion stability, and provides excellent surface appearance and physical properties for a molding thereof.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: June 16, 1998
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Mitsuteru Mutsuda, Kenji Nakama
  • Patent number: 4891262
    Abstract: Provided is a high strength wet-laid nonwoven fabric having strength, i.e., tensile strength, tear strength and interlayer peeling strength, similar to those of a filament nonwoven fabric, and a uniformity similar to that of a conventional wet-laid nonwoven fabric. This nonwoven fabric is made of a fiber having a fiber diameter of from 7 .mu.m to 25 .mu.m and a ratio L/D of from 0.8.times.10.sup.3 to 2.0.times.10.sup.3 and is produced by entangling the fibers in a sheet made by a paper making machine by using a columnar water stream.
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: January 2, 1990
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Kenji Nakamae, Tsukasa Shima
  • Patent number: 4426421
    Abstract: A multilayer composite sheet useful as a substrate for artificial leather, comprises at least three fibrous layers, namely, a superficial layer (A) consisting of a spun-laid web composed of extremely fine fibers having an average denier of 0.5 or less and three-dimensionally entangled with each other; and intermediate layer (B) consisting of a web of staple fibers having a length of 50 mm or less and entangled together; and a base layer (C) consisting of a woven or knitted fabric, the above-mentioned three fibrous layers being superimposed on each other and combined together in such a manner that a portion of the fibers in each layer penetrates into the adjacent layers and becomes entangled three-dimensionally with the fibers in the adjacent layers.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: January 17, 1984
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Kenji Nakamae, Tsukasa Shima