Patents by Inventor Ken Sakamoto

Ken Sakamoto 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: 8859338
    Abstract: A method of manufacturing a semiconductor device includes a sealing step of sealing an inner lead of a lead frame with a resin, and a bending step of bending a target bending region in which a stress by bending is not applied to a resin burr generated in the sealing step.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: October 14, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventor: Ken Sakamoto
  • Publication number: 20130341779
    Abstract: A method of manufacturing a semiconductor device includes a sealing step of sealing an inner lead of a lead frame with a resin, and a bending step of bending a target bending region in which a stress by bending is not applied to a resin burr generated in the sealing step.
    Type: Application
    Filed: February 21, 2013
    Publication date: December 26, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Ken SAKAMOTO
  • Patent number: 8518751
    Abstract: A method of manufacturing a semiconductor device comprises: preparing a lead frame including a package external region and a package internal region, a burred surface being provided at a top end of a side of the lead frame, and a fracture surface being provided in the vicinity of the top end of the side; chamfering the top end of the side in the package external region; mounting a semiconductor element on the lead frame and sealing the semiconductor element with mold resin in the package internal region; and removing resin burr provided on the side of the lead frame in the package external region after the chamfering and the sealing.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: August 27, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Ken Sakamoto, Taketoshi Shikano, Mitsugu Tanaka, Taishi Sasaki
  • Patent number: 8441122
    Abstract: A semiconductor device includes a first protection film for covering a first metal wiring. A second protection film is disposed on the first protection film, which is covered with a solder layer. Even if a crack is generated in the second protection film before the solder layer is formed on the second protection film, the crack is restricted from proceeding into the first protection film.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: May 14, 2013
    Assignee: Denso Corporation
    Inventors: Daisuke Fukuoka, Takanori Teshima, Kuniaki Mamitsu, Ken Sakamoto, Tetsuo Fujii, Akira Tai, Kazuo Akamatsu, Masayoshi Nishihata
  • Patent number: 8334176
    Abstract: A method of manufacturing a semiconductor device, includes the steps of mounting a lead frame in a recessed portion of a lower die, bringing the lower die and an upper die to overlap each other so that a portion for sliding the lead frame slides the lead frame toward injection surfaces, the sliding portion being formed on the recessed portion of the lower die or on the recessed portion of the upper die, clamping the lower die and the upper die together so that at least one projection formed on the upper die crushes down an end portion of the lead frame so as to form lateral projections on the left and right sides of the gate, the lateral projections blocking up the gap between the injection surfaces and the lead frame, and injecting a molding resin through the gate.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: December 18, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Ken Sakamoto, Taketoshi Shikano
  • Publication number: 20120196405
    Abstract: A method of manufacturing a semiconductor device comprises: preparing a lead frame including a package external region and a package internal region, a burred surface being provided at a top end of a side of the lead frame, and a fracture surface being provided in the vicinity of the top end of the side; chamfering the top end of the side in the package external region; mounting a semiconductor element on the lead frame and sealing the semiconductor element with mold resin in the package internal region; and removing resin burr provided on the side of the lead frame in the package external region after the chamfering and the sealing.
    Type: Application
    Filed: August 19, 2011
    Publication date: August 2, 2012
    Applicant: Mitsubishi Electric Corporation
    Inventors: Ken Sakamoto, Taketoshi Shikano, Mitsugu Tanaka, Taishi Sasaki
  • Publication number: 20120088337
    Abstract: A method of manufacturing a semiconductor device, includes the steps of mounting a lead frame in a recessed portion of a lower die, bringing the lower die and an upper die to overlap each other so that a portion for sliding the lead frame slides the lead frame toward injection surfaces, the sliding portion being formed on the recessed portion of the lower die or on the recessed portion of the upper die, clamping the lower die and the upper die together so that at least one projection formed on the upper die crushes down an end portion of the lead frame so as to form lateral projections on the left and right sides of the gate, the lateral projections blocking up the gap between the injection surfaces and the lead frame, and injecting a molding resin through the gate.
    Type: Application
    Filed: August 30, 2011
    Publication date: April 12, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Ken SAKAMOTO, Taketoshi Shikano
  • Publication number: 20110042741
    Abstract: A semiconductor device includes a first protection film for covering a first metal wiring. A second protection film is disposed on the first protection film, which is covered with a solder layer. Even if a crack is generated in the second protection film before the solder layer is formed on the second protection film, the crack is restricted from proceeding into the first protection film.
    Type: Application
    Filed: August 17, 2010
    Publication date: February 24, 2011
    Applicant: DENSO CORPORATION
    Inventors: Daisuke Fukuoka, Takanori Teshima, Kuniaki Mamitsu, Ken Sakamoto, Manabu Tomisaka, Tetsuo Fujii, Akira Tai, Kazuo Akamatsu, Masayoshi Nishihata
  • Patent number: 5552833
    Abstract: A method and system in which television-program table information is transmitted using teletext formats in a coding transmission system. On the reception side, reservation of video recording with an image recording apparatus is effected by making use of the transmitted television-program table information. Reserving a recording time is accomplished using a program recognition device 9 which detects that the television-program table information has been transmitted. Further, a program update recognition device 10, a channel information processing device 11, a date information processing device 12, a time information processing device 13, a program code information processing device 14, and a title information processing device 15 serve to process their respective information in order to display the television program table on a display unit. Once displayed, a television program desired for video recording is selected by a cursor display device and selection device 19.
    Type: Grant
    Filed: April 7, 1992
    Date of Patent: September 3, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hidemi Henmi, Shigeru Takano, Hideto Nakahigashi, Ken Sakamoto
  • Patent number: 5390027
    Abstract: Television program information contained in an extracted text broadcast signal is selected and input to a video cassette recording device. The recording program information includes recording times and program titles. The recording device includes a timer for starting the recording of the television program on a tape in accordance with the recording information, an index detector for detecting an index along the tape to identify a section in the tape where the television program is recorded, a rewind controller for rewinding the tape to its initial position, a writing arrangement for writing the recording information of the recorded program together with the index information at the initial position of the tape, and a fast forward controller for advancing the tape to the end of the recorded section identified by the index. The recording information written at the initial position of the tape can be displayed on a screen to indicate the contents of the tape.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: February 14, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hidemi Henmi, Shigeru Takano, Hideto Nakahigashi, Ken Sakamoto
  • Patent number: 5365276
    Abstract: The present invention sequentially selects and outputs one of a plurality of video image sources 1 by an image signal source switching means 2, processes the video images by thinning circuit portions 3 and 4, writes in the video data into an image memory 5 and display the images on an image display device 6. Depending upon the detection output of an aspect ratio detecting circuit portion 12, which detects an aspect ratio of an image display of each of the video image source 1, thinning ratios of the thinning circuits 3 and 4 and a write in control circuit portion 9 for the image memory are switched in order to obtain a multiscreen display circuit which can display video signal sources having different aspect ratios.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: November 15, 1994
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kiyoshi Imai, Yutaka Nio, Ken Sakamoto, Keiya Miyoshi, Mitsuji Okawa, Toyoaki Unemura
  • Patent number: 5260788
    Abstract: A text broadcast receiver includes a data extraction circuit for extracting a data block in an encoded transmission-format text broadcast signal multiplexed to a vertical blanking period of a video signal, a data group construction circuit for constructing a data group by assembling a plurality of extracted data blocks, a data identifier for passing identifying the data group containing a television program table, a memory for storing the television program table contained in the data group passed through the data identifier, and display control circuit for reading the television program table from the memory and for displaying the television program table on a screen. The text broadcast receiver further includes a remote control selector for selecting at least one television program in the displayed television program table. The selected television program is recorded as a reserved television program for recording.
    Type: Grant
    Filed: November 29, 1991
    Date of Patent: November 9, 1993
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shigeru Takano, Hidemi Henmi, Hideto Nakahigashi, Ken Sakamoto
  • Patent number: 5185598
    Abstract: A character graphic information display device is adapted to decode into the character graphic picture images with the standard density the high density of character graphic information which has been transmitted so as to display it on the display portion after passing through the memory and the processing circuit; the desired region may be displayed on the whole display portion as the high density picture images by the operation of the keypad. Also order to obtain other regions as the high density picture images, the other high density picture images are continuously displayed only by the movement of the cursor in the condition of the high density picture face.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: February 9, 1993
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Ken Sakamoto
  • Patent number: 5138450
    Abstract: A display apparatus capable of displaying, by use of an ordinary television set function, character/figure information having a higher display density than standard chemistry character figure information. The apparatus includes a first reducing device for reducing into a pixel a partition having vertical and horizontal lengths respectively twice the vertical and horizontal lengths of a smallest pixel zone associated with a dot pattern signal, character generators and a second reducing device for producing a reduced character pattern associated with character codes in a received signal, and a third reducing device for reducing into a block a partition having vertical and horizontal lengths respectively twice the vertical and horizontal lengths of an attribute data specification block specifying a character/figure display attribute in the signal.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: August 11, 1992
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shin Fukuda, Ken Sakamoto, Toyoaki Unemura, Tomoji Kondo, Takashi Yamaguchi
  • Patent number: 5010406
    Abstract: A character multiplex broadcasting receiving apparatus is provided for reducing and displaying a plurality of character figure images including header information and text information. In the invention, to simultaneously display a plurality of character figure images, division signals are formed from a horizontal pulse, a vertical pulse, and a clock pulse (chrominance subcarrier frequency f.sub.sc .times.4) to designate areas on the CRT. Either and animation image (television image) or a character image to display character figure information is designated for each divided picture plane and a plurality of character figure images are simultaneously displayed.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: April 23, 1991
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshikatsu Kawakami, Shin Fukuda, Hiroyasu Shinbo, Toyoaki Unemura, Ken Sakamoto, Tomoji Kondo
  • Patent number: 4992782
    Abstract: A character and graphics display device for displaying character and graphics data which includes a receiving circuit for deriving the character and graphics data from a signal carrying that data encoded therein, a memory for storing the received data, a decoder circuit for decoding the encoded data into suitable form for transfer to a display device, and a display memory for temporarily storing this decoded data, further includes compression circuits for converting the decoded data into a form whereby patterns represented by that data are displayed in compressed size. Pattern and graphics data can thereby be displayed together with other data such as a television picture, or a number of pages of the character and graphics data can be displayed simultaneously.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: February 12, 1991
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Ken Sakamoto, Hidemi Henmi, Tomoji Kondo, Hiroyasu Shimbo, Shin Fukuda
  • Patent number: D694155
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: November 26, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yosuke Matsuoka, Ken Sakamoto