Patents by Inventor Kiyomaro Mihara

Kiyomaro Mihara 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: 6743751
    Abstract: A thermal transfer image-receiving sheet 1 includes a seal part 9 including at least a receptive layer 8, a substrate 7 and a pressure-sensitive adhesive layer 6 which are laminated in the order mentioned; and a release sheet 5 which is separably adhered to the pressure-sensitive adhesive layer 6 of the seal part 9. The seal part 9 is provided with a half cut 2 that is useful for separating a part of the seal part 9 from the release sheet 5. The groove width of the half cut 2 is preferably from 25 to 60 &mgr;m. It is also preferable that the seal part 9 and the release sheet 5 be adhered to each other so that they show continuous and slight changes in peel strength when the seal part 9 is separated from the release sheet 5. The slight changes in peel strength measured in accordance with JIS Z0237-8.3.1 (180 Degrees Peeling Method) are referably in the range of 1 to 10 g/cm. Further, it is preferable that the mean peel strength be from 10 to 75 g/cm.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: June 1, 2004
    Assignee: DAI Nippon Printing Co., Ltd.
    Inventors: Kiyomaro Mihara, Kenji Tsuda, Wataru Ohyama
  • Publication number: 20020151438
    Abstract: A thermal transfer image-receiving sheet 1 includes a seal part 9 including at least a receptive layer 8, a substrate 7 and a pressure-sensitive adhesive layer 6 which are laminated in the order mentioned; and a release sheet 5 which is separably adhered to the pressure-sensitive adhesive layer 6 of the seal part 9. The seal part 9 is provided with a half cut 2 that is useful for separating a part of the seal part 9 from the release sheet 5. The groove width of the half cut 2 is preferably from 25 to 60 &mgr;m. It is also preferable that the seal part 9 and the release sheet 5 be adhered to each other so that they show continuous and slight changes in peel strength when the seal part 9 is separated from the release sheet 5. The slight changes in peel strength measured in accordance with JIS Z0237-8.3.1 (180 Degrees Peeling Method) are referably in the range of 1 to 10 g/cm. Further, it is preferable that the mean peel strength be from 10 to 75 g/cm.
    Type: Application
    Filed: February 6, 2002
    Publication date: October 17, 2002
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Kiyomaro Mihara, Kenji Tsuda, Wataru Ohyama
  • Patent number: 6380132
    Abstract: A thermal transfer image-receiving sheet 1 includes a seal part 9 including at least a receptive layer 8, a substrate 7 and a pressure-sensitive adhesive layer 6 which are laminated in the order mentioned; and a release sheet 5 which is separably adhered to the pressure-sensitive adhesive layer 6 of the seal part 9. The seal part 9 is provided with a half cut 2 that is useful for separating a part of the seal part 9 from the release sheet 5. The groove width of the half cut 2 is preferably from 25 to 60 &mgr;m. It is also preferable that the seal part 9 and the release sheet 5 be adhered to each other so that they show continuous and slight changes in peel strength when the seal part 9 is separated from the release sheet 5. The slight changes in peel strength measured in accordance with JIS Z0237-8.3.1 (180 Degrees Peeling Method) are preferably in the range of 1 to 10 g/cm. Further, it is preferable that the mean peel strength be from 10 to 75 g/cm.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: April 30, 2002
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Kiyomaro Mihara, Kenji Tsuda, Wataru Ohyama
  • Patent number: 5416059
    Abstract: There is provided a heat transfer image-receiving sheet comprising a substrate sheet and a dye-receptive layer, the substrate sheet comprising a core substrate; a first resin layer formed on one surface of the core substrate, on which layer the dye-receptive layer is formed; and a second resin layer formed on the other surface of the core substrate, the difference in the degree of heat shrinkage between the first resin layer and the second resin layer being in the range of 0.4% to 2.0%.
    Type: Grant
    Filed: June 9, 1994
    Date of Patent: May 16, 1995
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Kenji Tsuda, Kiyomaro Mihara, Kozo Odamura