Patents by Inventor Hikari Namba

Hikari Namba 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).

  • Network development support system
    Patent number: 5999181
    Abstract: In a network development support system, it is supported that logical hierarchic structure, physical parameters, and logical parameters of a network are integrally designed in an environment in which relationships therebetween can be confirmed. Definition of logical hierarchic structure of the network is accepted in the form of a tree of containers in a container tree window. Physical and logical parameters are accepted in physical and logical object windows, respectively. The physical and logical object windows are created in association with containers of the container trees.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: December 7, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Satoru Tezuka, Shigeru Miyake, Hiroshi Furukawa, Kenichi Kihara, Chiho Kitahara, Hideomi Idei, Shihoko Taguchi, Hikari Namba, Alberto Suzano
  • Cryptographic communication system
    Patent number: 5966448
    Abstract: According to a cryptographic communication system which can safely perform cipher conversion processing when cryptographic communication is performed between terminals using different cipher types, when a terminal 10A-1 connected to a LAN-A using a cryptographic algorithm C1 transmits data to a terminal 10B-1 connected to a LAN-B using a cryptographic algorithm C2, the terminal 10A-1 generates two meaningless data items from the data to be transmitted, decrypts the two generated data items according to the cryptographic algorithm C1, and then transmits the decrypted data to two cryptographic protocol conversion servers and for dividing the data into two data items. Each of the cryptographic protocol conversion servers decrypts each transmitted data item, the re-encrypts the decrypted data according to the cryptographic algorithm C2, and then transmits the data to the terminal 10B-1.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: October 12, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Hikari Namba, Kazuo Takaragi, Satoshi Miyazaki
  • Network development support system
    Patent number: 5619640
    Abstract: In a network development support system, it is supported that logical hierarchic structure, physical parameters, and logical parameters of a network are integrally designed in an environment in which relationships therebetween can be confirmed. Definition of logical hierarchic structure of the network is accepted in the form of a tree of containers in a container tree window. Physical and logical parameters are accepted in physical and logical object windows, respectively. The physical and logical object windows are created in association with containers of the container trees.
    Type: Grant
    Filed: September 21, 1995
    Date of Patent: April 8, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Satoru Tezuka, Shigeru Miyake, Hiroshi Furukawa, Kenichi Kihara, Chiho Kitahara, Hideomi Idei, Shihoko Taguchi, Hikari Namba, Alberto Suzano