Patents by Inventor Mikio Sakuma

Mikio Sakuma 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: 7565002
    Abstract: A dicing apparatus for moving a wafer quickly to a desired observation position before the wafer surface is observed. The apparatus comprises imaging means for imaging the surface of a wafer, display means for displaying the image picked up by the imaging means, input means for inputting position information by designating an arbitrary position displayed by the display means, by using the display position on the display means, conversion means for converting the inputted position information into positional information on the position of the wafer surface, and moving means for moving the display position on the basis of the converted positional information. The apparatus displays the image in the displayed position moved.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: July 21, 2009
    Assignee: Tokyo Seimitsu Co., Ltd.
    Inventors: Hiroyuki Yasutomi, Mikio Sakuma, Hirofumi Shimoda
  • Patent number: 7156501
    Abstract: Pressure chambers arranged in the form of a matrix along a plane form first and second pressure chamber columns arranged alternately in the plane and having nozzles connected on opposite sides respectively. Two adjacent pressure chamber columns constituted by a first pressure chamber column and a second pressure chamber column are arranged opposite to each common ink path. First connection holes formed in the pressure chambers of the first pressure chamber column and connected to nozzles and second connection holes formed in the pressure chambers of the second pressure chamber column and connected to nozzles are arranged side by side on opposite sides of a corresponding common ink path. Between two adjacent common ink paths, first connection holes and second connection holes are arranged on a column.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: January 2, 2007
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Atsushi Hirota, Mikio Sakuma
  • Publication number: 20050105790
    Abstract: A wafer observation position designating apparatus and a wafer display position designating method for moving a wafer quickly to a desired observation position before the wafer surface is observed. The apparatus comprises imaging means for imaging the surface of a wafer, display means for displaying the image picked up by the imaging means, input means for inputting position information by designating an arbitrary position displayed by the display means, by using the display position on the display means, conversion means for converting the inputted position information into positional information on the position of the wafer surface, and moving means for moving the display position on the basis of the converted positional information. The apparatus displays the image in the displayed position moved.
    Type: Application
    Filed: November 6, 2001
    Publication date: May 19, 2005
    Inventors: Hiroyuki Yasutomi, Mikio Sakuma, Hirofumi Shimoda
  • Publication number: 20050036008
    Abstract: Pressure chambers arranged in the form of a matrix along a plane form first and second pressure chamber columns arranged alternately in the plane and having nozzles connected on opposite sides respectively. Two adjacent pressure chamber columns constituted by a first pressure chamber column and a second pressure chamber column are arranged opposite to each common ink path. First connection holes formed in the pressure chambers of the first pressure chamber column and connected to nozzles and second connection holes formed in the pressure chambers of the second pressure chamber column and connected to nozzles are arranged side by side on opposite sides of a corresponding common ink path 5a. Between two adjacent common ink paths, first connection holes and second connection holes are arranged on a column.
    Type: Application
    Filed: August 9, 2004
    Publication date: February 17, 2005
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Atsushi Hirota, Mikio Sakuma
  • Patent number: 6783214
    Abstract: An inkjet head provided with a plurality of pressure chambers includes an actuator unit for the plurality of pressure chambers. The actuator unit includes a plurality of inactive layers and at least one active layer, both made of piezoelectric material. The plurality of inactive layers are arranged on a pressure chamber side to cover the plurality of pressure chambers. The at least one active layer is arranged on an opposite side of the pressure chambers with respect to the inactive layers. The active layer is segmented to a plurality of segments which are located at positions correspond to the plurality of pressure chambers. Further, each segment of the active layer is sandwiched between a common electrode and a driving electrode.
    Type: Grant
    Filed: November 29, 2002
    Date of Patent: August 31, 2004
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Mikio Sakuma
  • Publication number: 20030103117
    Abstract: An inkjet head provided with a plurality of pressure chambers includes an actuator unit for the plurality of pressure chambers. The actuator unit includes a plurality of inactive layers and at least one active layer, both made of piezoelectric material. The plurality of inactive layers are arranged on a pressure chamber side to cover the plurality of pressure chambers. The at least one active layer is arranged on an opposite side of the pressure chambers with respect to the inactive layers. The active layer is segmented to a plurality of segments which are located at positions correspond to the plurality of pressure chambers. Further, each segment of the active layer is sandwiched between a common electrode and a driving electrode.
    Type: Application
    Filed: November 29, 2002
    Publication date: June 5, 2003
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Mikio Sakuma
  • Patent number: 5685654
    Abstract: A tape storage cassette contains a thermal transfer ribbon having an ink coating on one surface and a recording tape wound about respective spools. A separator concentric with the recording tape spool wraps partially about the recording tape wound upon the spool to isolate the recording tape from the ink coating on the thermal transfer ribbon and cooperates with a film separator in preventing contact between the transfer ribbon and recording film prior to printing.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: November 11, 1997
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshiaki Nagao, Atsuhiro Kobayashi, Mikio Sakuma
  • Patent number: 5663750
    Abstract: An ink ejection device used, for example, in conjunction wit a host computer or a personal computer includes a head formed with orifices from which ink droplets are ejected to print a dot image on a printing sheet. The ink supplied to the head is stored in an ink reservoir. To properly continue printing when an amount of ink remaining in the ink reservoir is small, an amount of ink remaining in the ink reservoir is detected. When the detection results indicate that less than a predetermined amount of ink remains in the ink reservoir, then printing is performed using less ink than is used during normal printing.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: September 2, 1997
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Mikio Sakuma
  • Patent number: 5565898
    Abstract: An ink ejecting printer capable of increasing a printing speed by eliminating unnecessary head maintenance operations includes a mode controller, a ROM, timing value storage, a wiping ordering unit and a suction ordering unit. When a normal print mode is selected, the mode controller supplies the timing value storage with the initial values of the wiping and suction timings held in the ROM; when a thin-out mode is selected, the mode controller supplies the storage with changed values. The timing value storage stores the wiping and suction timings sent from the mode controller. When a print operation is started, the wiping ordering unit and suction ordering unit retrieve the values of the wiping and suction timings from the timing value storage. When the print operation is found to have reached one of the timings, the corresponding unit suspends the printing and causes the appropriate wiping or sucking operation to be carried out.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: October 15, 1996
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Mikio Sakuma
  • Patent number: 5530461
    Abstract: A cleaning operation is directed by a CPU of an ink ejecting device every predetermined number of characters printed or when the power is turned on. The cleaning counter counts the number of cleaning times, the comparator compares a value in a table in ROM with the count value in the counter, and a message informing the user of the need for head replacement is displayed on the display of the operational panel when the numbers agree. Therefore, this ink ejecting device can inform the user of the appropriate time for head replacement.
    Type: Grant
    Filed: March 16, 1994
    Date of Patent: June 25, 1996
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Mikio Sakuma
  • Patent number: 5419648
    Abstract: A tape feed mechanism comprising a storage cassette having at least two tapes, a tape feed device and a guide arrangement. One of the tapes is an inked ribbon having an inked surface that is directed toward the spool about which it is wound.
    Type: Grant
    Filed: March 9, 1994
    Date of Patent: May 30, 1995
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshiaki Nagao, Atsuhiro Kobayashi, Mikio Sakuma
  • Patent number: 5348406
    Abstract: A printing device includes a detachable cassette containing therein a recording medium to be printed upon and a cutter blade which is movable to contact a wall section of the cassette through the recording medium. A holder on the cassette guides and holds the recording medium which has exited the cassette to a position on the wall section for cutting by the cutter blade.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: September 20, 1994
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Nagao Yoshiaki, Kobayashi Atsuhiro, Mikio Sakuma
  • Patent number: 5271789
    Abstract: A tape end processing unit has a guide path for guiding a tape piece from an insertion port into which the tape piece is inserted to a cutting blade to cut off the tape piece. The guide path is bent in a convex form in a direction in which the cutting blade moves when the tape piece is cut. With this configuration, the curl of the tape piece can be cured, and an end of the tape piece can be cut off with an accurate length. The tape end processing unit may have a blade receiving stand which has a concave section having a width narrower than the length of the cutting blade and a depth smaller than the thickness of a releasable paper constituting a part of the tape piece. With this configuration, the tape end processing unit can cut off an end of the tape piece in a state where the releasable paper can easily be separated.
    Type: Grant
    Filed: September 11, 1991
    Date of Patent: December 21, 1993
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yukihito Takagi, Shigeru Nakata, Teruo Imamaki, Mikio Sakuma
  • Patent number: 5188469
    Abstract: In a tape feed mechanism comprising a tape storage cassette including at least two tapes in respective wound states and a tape feed device feeding the two tapes in an overlapped state, provided is a guide member for guiding the two tapes to a predetermined portion in the tape storage cassette. Thus, the tape storage cassette is detachably mounted from the tape feed device in a condition that each of the leading end portions of the tapes are fixed at the predetermined position and the tape storage cassette is attachably mounted again to the tape feed device in that condition.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: February 23, 1993
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshiaki Nagao, Atsuhiro Kobayashi, Mikio Sakuma
  • Patent number: 5160573
    Abstract: According to the present invention, a tape cutter device for cutting a tape which comprises a tape substrate coated with an adhesive layer and a separable sheet laid on the adhesive layer comprises: means for receiving the tape; and a cutter blade for cutting the tape received on the tape receiving means to thereby divide the tape into two sections such that at least the adhesive layers of the two sections being separated from each other; wherein, in each section of the tape, an adhesive force of the adhesive layer relative to the separable sheet is greater than an adhesive force of the adhesive layer relative to the cutter blade.
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: November 3, 1992
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yukihito Takagi, Teruo Imamaki, Shigeru Nakata, Mikio Sakuma
  • Patent number: 5117719
    Abstract: A tape printer for making adhesive labels includes a tape supply, a printer for reverse printing on the tape and a double-sided adhesive film, one side of which is laminated to the printed tape and the other side of which carries a release paper. The printer has a cutter for cutting the tape from the continuous supply tape and includes a trimmer for rounding the corners of the tape to reduce defoliation of the tape from the surface to which it is applied. The cutting blade of the trimmer has a central straight section, contiguous arcuate sections at each end of the central straight section and auxiliary straight cutting edges contiguous with the arcuate sections and extending at an obtuse angle to the central straight section. The cutting blade is mounted in an integrally molded support unit which includes guide members for guiding the width of tape to be trimmed by the cutting blade.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: June 2, 1992
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yukihito Takagi, Teruo Imamaki, Shigeru Nakata, Mikio Sakuma
  • Patent number: 4983854
    Abstract: A sheet detection apparatus is provided which determines the presence or absence of a sheet on a sheet feed path as well as the type of sheet. The apparatus utilizes a light source to direct a predetermined amount of light to a sensor by reflecting off a sheet on the feed path or a reflector in the absence of any such sheet on the path. The presence or absence of the sheet is determined by comparing the output value of the sensor with predetermined reference values.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: January 8, 1991
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Toshiaki Mizuno, Shinji Kimura, Toshiaki Sugiura, Mikio Sakuma, Tasuku Sugimoto, Mamoru Imaizumi