Patents by Inventor Tomohiro Nakayama

Tomohiro Nakayama 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: 7985368
    Abstract: To separate resin molded parts that are used for a push button switch member with less light leakage from the side faces and less trouble in key operation, easily, a resin molded body comprises one or more resin molded parts for a push button switch member, a frame surrounding the outside of the resin molded parts, one or more gates connecting a plurality of the resin molded parts each other or the resin molded part to the frame and one or more runners crossing the longitudinal direction of the gates, wherein the gates are connected at the back faces of the resin molded parts not to be coated with light shielding paint, and wherein the runners are connected to the gates on the same surfaces as the resin molded parts are connected to and are connecting the opposing sides of the frame.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: July 26, 2011
    Assignee: Shin-Etsu Polymer Co., Ltd
    Inventors: Tomohiro Nakayama, Norio Suzuki
  • Patent number: 7955069
    Abstract: To separate resin molded parts that are used for a push button switch member with less light leakage from the side faces and less trouble in key operation, easily, a resin molded body comprises one or more resin molded parts for a push button switch member, a frame surrounding the outside of the resin molded parts, one or more gates connecting a plurality of the resin molded parts each other or the resin molded part to the frame and one or more runners crossing the longitudinal direction of the gates, wherein the gates are connected at the back faces of the resin molded parts not to be coated with light shielding paint, and wherein the runners are connected to the gates on the same surfaces as the resin molded parts are connected to and are connecting the opposing sides of the frame.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: June 7, 2011
    Assignee: Shin-Etsu Polymer Co., Ltd.
    Inventors: Tomohiro Nakayama, Norio Suzuki
  • Publication number: 20090267255
    Abstract: To separate resin molded parts that are used for a push button switch member with less light leakage from the side faces and less trouble in key operation, easily, a resin molded body comprises one or more resin molded parts for a push button switch member, a frame surrounding the outside of the resin molded parts, one or more gates connecting a plurality of the resin molded parts each other or the resin molded part to the frame and one or more runners crossing the longitudinal direction of the gates, wherein the gates are connected at the back faces of the resin molded parts not to be coated with light shielding paint, and wherein the runners are connected to the gates on the same surfaces as the resin molded parts are connected to and are connecting the opposing sides of the frame.
    Type: Application
    Filed: July 8, 2009
    Publication date: October 29, 2009
    Inventors: Tomohiro NAKAYAMA, Norio SUZUKI
  • Publication number: 20090269432
    Abstract: To separate resin molded parts that are used for a push button switch member with less light leakage from the side faces and less trouble in key operation, easily, a resin molded body comprises one or more resin molded parts for a push button switch member, a frame surrounding the outside of the resin molded parts, one or more gates connecting a plurality of the resin molded parts each other or the resin molded part to the frame and one or more runners crossing the longitudinal direction of the gates, wherein the gates are connected at the back faces of the resin molded parts not to be coated with light shielding paint, and wherein the runners are connected to the gates on the same surfaces as the resin molded parts are connected to and are connecting the opposing sides of the frame.
    Type: Application
    Filed: July 8, 2009
    Publication date: October 29, 2009
    Inventors: Tomohiro Nakayama, Norio Suzuki
  • Patent number: 7586056
    Abstract: To separate resin molded parts that are used for a push button switch member with less light leakage from the side faces and less trouble in key operation, easily, a resin molded body comprises one or more resin molded parts for a push button switch member, a frame surrounding the outside of the resin molded parts, one or more gates connecting a plurality of the resin molded parts each other or the resin molded part to the frame and one or more runners crossing the longitudinal direction of the gates, wherein the gates are connected at the back faces of the resin molded parts not to be coated with light shielding paint, and wherein the runners are connected to the gates on the same surfaces as the resin molded parts are connected to and are connecting the opposing sides of the frame.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: September 8, 2009
    Assignee: Shin-Etsu Polymer Co., Ltd
    Inventors: Tomohiro Nakayama, Norio Suzuki
  • Publication number: 20080067051
    Abstract: To separate resin molded parts that are used for a push button switch member with less light leakage from the side faces and less trouble in key operation, easily, a resin molded body comprises one or more resin molded parts for a push button switch member, a frame surrounding the outside of the resin molded parts, one or more gates connecting a plurality of the resin molded parts each other or the resin molded part to the frame and one or more runners crossing the longitudinal direction of the gates, wherein the gates are connected at the back faces of the resin molded parts not to be coated with light shielding paint, and wherein the runners are connected to the gates on the same surfaces as the resin molded parts are connected to and are connecting the opposing sides of the frame.
    Type: Application
    Filed: September 11, 2007
    Publication date: March 20, 2008
    Inventors: Tomohiro NAKAYAMA, Norio Suzuki
  • Patent number: 6950349
    Abstract: A nonvolatile semiconductor memory is provided with a main memory array and a sub-memory array. When rewriting a portion of data having been written in the main memory cell array, a modification data is written into the sub-memory cell array without erasing said main memory cell array. Further, correspondent information on a first address of the main memory cell array storing a data to be modified and a second address of the sub-memory cell array storing the modification data is recorded. At the time of a readout operation, a readout address is compared with the first address recorded in the correspondent information. When said comparison result indicates consistency, a data in the sub-memory cell array of the second address corresponding to the first address is read out. Otherwise, when the comparison result indicates inconsistency, a data in the main memory cell array corresponding to the readout address is read out.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: September 27, 2005
    Assignee: Fujitsu Limited
    Inventor: Tomohiro Nakayama
  • Patent number: 6675160
    Abstract: A database processing system for analyzing a query issued to a database to generate a corresponding execution procedure for performing database processing in accordance therewith. A plurality of columns for storing data each constituted by a set of instances and conditions concerning the instances constituting the plurality of columns are entered. A query is inputted which contains a predicate for evaluating whether a set of instances which meet the designated conditions and which can be identified with the same subscript exists among the sets of instances stored in the plurality of columns. In response to the query, a decision is made as to whether or not an index has been generated for one or plural columns specified in the query predicate. When the index is generated, the index is accessed to acquire an identifier of table data which is “true” for a predicate.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: January 6, 2004
    Assignees: Hitachi, Ltd., Hitachi Software Engineering Co., Ltd.
    Inventors: Norihiro Hara, Nobuo Kawamura, Tomohiro Nakayama, Kiyomi Hirohata
  • Publication number: 20040001370
    Abstract: A nonvolatile semiconductor memory is provided with a main memory array and a sub-memory array. When rewriting a portion of data having been written in the main memory cell array, a modification data is written into the sub-memory cell array without erasing said main memory cell array. Further, correspondent information on a first address of the main memory cell array storing a data to be modified and a second address of the sub-memory cell array storing the modification data is recorded. At the time of a readout operation, a readout address is compared with the first address recorded in the correspondent information. When said comparison result indicates consistency, a data in the sub-memory cell array of the second address corresponding to the first address is read out. Otherwise, when the comparison result indicates inconsistency, a data in the main memory cell array corresponding to the readout address is read out.
    Type: Application
    Filed: June 23, 2003
    Publication date: January 1, 2004
    Applicant: FUJITSU LIMITED
    Inventor: Tomohiro Nakayama
  • Publication number: 20020184202
    Abstract: A database processing system for analyzing a query issued to a database to generate a corresponding execution procedure for performing database processing in accordance therewith. A plurality of columns for storing data each constituted by a set of instances and conditions concerning the instances constituting the plurality of columns are entered. A query is inputted which contains a predicate for evaluating whether a set of instances which meet the designated conditions and which can be definitely determined with same subscript exists among the sets of instances stored in the plurality of columns. In response to the query, decision is made as to whether or not an index has been generated for one or plural columns specified in the query predicate. When the index is generated, the index is accessed to acquire an identifier of table data which is “true” for the predicate.
    Type: Application
    Filed: June 13, 2002
    Publication date: December 5, 2002
    Applicant: Hitachi, Ltd.
    Inventors: Norihiro Hara, Nobuo Kawamura, Tomohiro Nakayama, Kiyomi Hirohata
  • Patent number: 6480432
    Abstract: Memory cell blocks 10 to 17 are respectively provided with mask ROM cell rows and different values from one another are respectively stored in the mask ROM cell rows. A mask ROM cell row selecting circuit 5i makes transfer gates of mask ROM cells in a memory cell block 1i corresponding to a block selection signal BSi turned on when a test mode signal *TM and the block selection signal BSi are both active wherein i=1 to 7. A word line selection signal is made inactive when the test mode signal *TM is active. Tests on short between address signal lines and other defects are effected in a procedure wherein a test mode is activated, block selection signals are sequentially activated to read contents of mask ROM cell rows and the contents are compared with expected values.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: November 12, 2002
    Assignee: Fujitsu Limited
    Inventor: Tomohiro Nakayama
  • Patent number: 6427145
    Abstract: A database processing system for analyzing a query issued to a database to generate a corresponding execution procedure for performing database processing in accordance therewith. A plurality of columns for storing data each constituted by a set of instances and conditions concerning the instances constituting the plurality of columns are entered. A query is inputted which contains a predicate for evaluating whether a set of instances which meet the designated conditions and which can be identified with the same subscript exists among the sets of instances stored in the plurality of columns. In response to the query, a decision is made as to whether or not an index has been generated for one or plural columns specified in the query predicate. When the index is generated, the index is accessed to acquire an identifier of table data which is “true” for a predicate.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: July 30, 2002
    Assignees: Hitachi, Ltd., Hitachi Software Engineering Co., Ltd.
    Inventors: Norihiro Hara, Nobuo Kawamura, Tomohiro Nakayama, Kiyomi Hirohata
  • Patent number: 6262924
    Abstract: A semiconductor memory device is provided with terminals for receiving a chip enable signal and an address signal, an internal circuit, and an internal control signal generating circuit for generating a predetermined internal control signal which makes an output timing of the semiconductor memory device same regardless of a level of the address signal when the chip enable signal undergoes a transition from an inactive level to an active level. The internal circuit is deactivated in response to the inactive level of the chip enable signal and is activated in response to the active level of the chip enable signal.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: July 17, 2001
    Assignee: Fujitsu Limited
    Inventors: Yutaka Fukutani, Tomohiro Nakayama, Seizi Hirayama, Waichiro Fujieda, Arayama Youji, Atsushi Fujii, Yoshitaka Takahashi, Masanori Nagasawa, Masakazu Kimura, Tutomu Taniguti, Hiroyuki Fujimoto
  • Patent number: 6026052
    Abstract: A semiconductor memory device is provided with terminals for receiving a chip enable signal and an address signal, an internal circuit, and an internal control signal generating circuit for generating a predetermined internal control signal which makes an output timing of the semiconductor memory device same regardless of a level of the address signal when the chip enable signal undergoes a transition from an inactive level to an active level. The internal circuit is deactivated in response to the inactive level of the chip enable signal and is activated in response to the active level of the chip enable signal.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: February 15, 2000
    Assignee: Fujitsu Limited
    Inventors: Yutaka Fukutani, Tomohiro Nakayama, Seizi Hirayama, Waichiro Fujieda, Arayama Youji, Atsushi Fujii, Yoshitaka Takahashi, Masanori Nagasawa, Masakazu Kimura, Tutomu Taniguti, Hiroyuki Fujimoto
  • Patent number: 5831933
    Abstract: A semiconductor memory device is provided with terminals for receiving a chip enable signal and an address signal, an internal circuit, and an internal control signal generating circuit for generating a predetermined internal control signal which makes an output timing of the semiconductor memory device same regardless of a level of the address signal when the chip enable signal undergoes a transition from an inactive level to an active level. The internal circuit is deactivated in response to the inactive level of the chip enable signal and is activated in response to the active level of the chip enable signal.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: November 3, 1998
    Assignee: Fujitsu Limited
    Inventors: Yutaka Fukutani, Tomohiro Nakayama, Seizi Hirayama, Waichiro Fujieda, Arayama Youji, Atsushi Fujii, Yoshitaka Takahashi, Masanori Nagasawa, Masakazu Kimura, Tutomu Taniguti, Hiroyuki Fujimoto
  • Patent number: 5781627
    Abstract: A semiconductor integrated circuit device with a copy-preventive function comprises a memory for storing data to be used by users, an input unit for performing various logical operations on at least one input information fed externally and accessing the memory, an output unit for performing various logical operations on the data at the time of supplying the data from the memory, a judging unit for comparing at least one of the state of the input information, the logical state of the input unit, the logical state of the output unit, and the state of data provided by the output unit with specific judgment information and indicating the result of comparison, and a control unit that when the result indicated by the judging unit reveals that the at least one of the states is consistent with a specific state, acts at least on the output unit so as to prevent data stored in the memory from being supplied normally.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: July 14, 1998
    Assignee: Fujitsu Limited
    Inventors: Nobuo Ikuta, Kouji Ueno, Kouji Shishido, Yutaka Fukutani, Youji Arayama, Tomohiro Nakayama, Takanori Shiga, Masakazu Kimura, Hiroyuki Fujimoto, Yoshiyuki Fujita
  • Patent number: 5661694
    Abstract: A semiconductor memory device is provided with terminals for receiving a chip enable signal and an address signal, an internal circuit, and an internal control signal generating circuit for generating a predetermined internal control signal which makes an output timing of the semiconductor memory device same regardless of a level of the address signal when the chip enable signal undergoes a transition from an inactive level to an active level. The internal circuit is deactivated in response to the inactive level of the chip enable signal and is activated in response to the active level of the chip enable signal.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: August 26, 1997
    Assignee: Fujitsu Limited
    Inventors: Yutaka Fukutani, Tomohiro Nakayama, Seizi Hirayama, Waichiro Fujieda, Arayama Youji, Atsushi Fujii, Yoshitaka Takahashi, Masanori Nagasawa, Masakazu Kimura, Tutomu Taniguti, Hiroyuki Fujimoto
  • Patent number: 5600599
    Abstract: An object of the present invention is to improve the output speed of a data signal output circuit having a latch circuit when the supply voltage is low. The data signal output circuit according to the present invention includes a latch circuit; an output circuit; a latch control circuit; an output control circuit; and a supply voltage decrease detection circuit. The latch circuit latches and holds a data signal according to a latch signal output from the latch control circuit. By setting the latch signal to one of two logical states, the latch circuit changes to a through state directly outputting an input data signal. The output circuit changes between a state for outputting a data signal from the latch circuit and a high-impedance state according to an output control signal output from the output control circuit. The supply voltage decrease detection circuit detects whether or not the supply voltage is less than a pre-determined value.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: February 4, 1997
    Assignee: Fujitsu Limited
    Inventors: Tomohiro Nakayama, Yutaka Fukutani, Takanori Shiga, Masakazu Kimura