Patents by Inventor Masafumi Takagi

Masafumi Takagi 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: 10802650
    Abstract: A coordinate input device includes an operation detecting unit for detecting an input operation performed by an operation body and a calculation unit for computing a calculation result from the input operation, wherein, in a case where the input operation detected by the operation detecting unit continues for a predetermined time, the calculation unit acquires a first position coordinate at a first time and a second position coordinate at a second time is detected after the first time, calculates an input vector from the first position and directed toward the second position, calculates a movable distance between an end and another end of the operation detecting unit on a line connecting the first position and the second position, and computing an output vector by increasing a correction value for correcting a value of the input vector so that the shorter the movable distance, the larger the correction value is.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: October 13, 2020
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Naoyuki Hatano, Shinya Abe, Masafumi Takagi
  • Patent number: 10775922
    Abstract: There is provision of an input device for calculating loads applied to multiple pressed points respectively, by executing one or more calculation loops in a load calculation unit. The calculation loop includes calculating computation values representing loads detected at load sensors based on initial pressed point loads, calculating a comparison value based on a comparison of the computation value with a detection value detected by the load sensor, calculating an adjustment value for adjusting the initial pressed point load based on the comparison values and pressed positions, and calculating the pressed point loads by adjusting the initial pressed point load based on the adjustment value. The load calculation unit uses the pressed point load calculated in the calculation loop for each of the pressed positions as an initial pressed point load in the next calculation loop.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: September 15, 2020
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Naoyuki Hatano, Hiroshi Izumi, Masafumi Takagi
  • Patent number: 10671230
    Abstract: An input device for detecting a change in capacitance in accordance with proximity of an object is provided. The input device includes: a sensor unit including multiple capacitive coupling parts formed between multiple driving electrodes and multiple sensing electrodes; a capacitance detector for detecting a capacitance value of each of the capacitive coupling parts; and a two-dimensional data generating unit for generating a two-dimensional data matrix consisting of the capacitance values of the capacitive coupling parts. When a target row or a target column in the two-dimensional data matrix matches a first pattern indicating that multiple capacitive coupling parts each having a capacitance value greater than a reference value are arranged consecutively, the input device updates the reference value.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: June 2, 2020
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Masafumi Takagi, Naoyuki Hatano, Kazuhito Oshita
  • Publication number: 20190361570
    Abstract: An input device for detecting a change in capacitance in accordance with proximity of an object is provided. The input device includes: a sensor unit including multiple capacitive coupling parts formed between multiple driving electrodes and multiple sensing electrodes; a capacitance detector for detecting a capacitance value of each of the capacitive coupling parts; and a two-dimensional data generating unit for generating a two-dimensional data matrix consisting of the capacitance values of the capacitive coupling parts. When a target row or a target column in the two-dimensional data matrix matches a first pattern indicating that multiple capacitive coupling parts each having a capacitance value greater than a reference value are arranged consecutively, the input device updates the reference value.
    Type: Application
    Filed: August 8, 2019
    Publication date: November 28, 2019
    Inventors: Masafumi TAKAGI, Naoyuki HATANO, Kazuhito OSHITA
  • Publication number: 20190332242
    Abstract: A coordinate input device includes an operation detecting unit for detecting an input operation performed by an operation body and a calculation unit for computing a calculation result from the input operation, wherein, in a case where the input operation detected by the operation detecting unit continues for a predetermined time, the calculation unit acquires a first position coordinate at a first time and a second position coordinate at a second time is detected after the first time, calculates an input vector from the first position and directed toward the second position, calculates a movable distance between an end and another end of the operation detecting unit on a line connecting the first position and the second position, and computing an output vector by increasing a correction value for correcting a value of the input vector so that the shorter the movable distance, the larger the correction value is.
    Type: Application
    Filed: July 8, 2019
    Publication date: October 31, 2019
    Inventors: Naoyuki HATANO, Shinya ABE, Masafumi TAKAGI
  • Publication number: 20190155446
    Abstract: There is provision of an input device for calculating loads applied to multiple pressed points respectively, by executing one or more calculation loops in a load calculation unit. The calculation loop includes calculating computation values representing loads detected at load sensors based on initial pressed point loads, calculating a comparison value based on a comparison of the computation value with a detection value detected by the load sensor, calculating an adjustment value for adjusting the initial pressed point load based on the comparison values and pressed positions, and calculating the pressed point loads by adjusting the initial pressed point load based on the adjustment value. The load calculation unit uses the pressed point load calculated in the calculation loop for each of the pressed positions as an initial pressed point load in the next calculation loop.
    Type: Application
    Filed: January 24, 2019
    Publication date: May 23, 2019
    Inventors: Naoyuki HATANO, Hiroshi IZUMI, Masafumi TAKAGI
  • Publication number: 20170205914
    Abstract: An input apparatus has an input device having a manipulation plane manipulated by a finger or another manipulation body and also has a detection element having a movable portion that moves in response to the deformation or motion of the input means. The input apparatus sends output signals received from the input device and detection element. The input means has an input determining portion that determines an input manipulation to the manipulation plane. The detection means has displacement detecting portions that detect the amount of displacement of the movable portion and also has a pressing determining portion that determines a pressing manipulation to the input means according to the amount of displacement. If the input determining portion decides that the manipulation body is in contact with the manipulation plane, the pressing determining portion determines the pressing manipulation.
    Type: Application
    Filed: January 12, 2017
    Publication date: July 20, 2017
    Inventor: Masafumi Takagi
  • Patent number: 9141246
    Abstract: In a case where a touch position is a peripheral portion, when spatial characteristics which correspond to an area and a length of a touch region exceed a first condition corresponding to a predetermined area and length, it is determined that the touch region is caused by a palm. When the spatial characteristics do not exceed the first condition, it is determined that the touch region is caused by a finger. In a case where a touch position is a central portion, when the spatial characteristics exceed a second condition corresponding to an area and a length that are larger than those of the first condition, it is determined that the touch region is caused by a palm. When the spatial characteristics do not exceed the second condition, it is determined that the touch region is caused by a finger.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: September 22, 2015
    Assignee: ALPS ELECTRIC CO., LTD.
    Inventors: Kazuhito Oshita, Hiroshi Shigetaka, Masafumi Takagi
  • Publication number: 20150035795
    Abstract: In a case where a touch position is a peripheral portion, when spatial characteristics which correspond to an area and a length of a touch region exceed a first condition corresponding to a predetermined area and length, it is determined that the touch region is caused by a palm. When the spatial characteristics do not exceed the first condition, it is determined that the touch region is caused by a finger. In a case where a touch position is a central portion, when the spatial characteristics exceed a second condition corresponding to an area and a length that are larger than those of the first condition, it is determined that the touch region is caused by a palm. When the spatial characteristics do not exceed the second condition, it is determined that the touch region is caused by a finger.
    Type: Application
    Filed: April 11, 2014
    Publication date: February 5, 2015
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Kazuhito OSHITA, Hiroshi SHIGETAKA, Masafumi TAKAGI
  • Patent number: 8099028
    Abstract: A developer supply system including a developer supply apparatus and a developer supply container which is detachably mountable to the apparatus, the system includes the developer supply container including a rotatable container body having an inner space configured and positioned to contain a developer; a feeding portion configured and positioned to feed the developer in the container body to discharge the developer out of the container body with a rotation of the container body; and a hooking portion configured and positioned to engage with the apparatus to receive a rotational force for rotating the container body; the apparatus including a driving member configured and positioned to apply the rotational force; a drive transmitting member configured and positioned to engage with the hooking portion to transmit the rotational force from the driving member to the hooking portion, the drive transmitting member, which has engaged with the hooking portion, being movable between a first position where the drive
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: January 17, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yusuke Yamada, Masafumi Takagi
  • Publication number: 20090232546
    Abstract: A developer supply system including a developer supply apparatus and a developer supply container which is detachably mountable to the apparatus, the system includes the developer supply container including a rotatable container body having an inner space configured and positioned to contain a developer; a feeding portion configured and positioned to feed the developer in the container body to discharge the developer out of the container body with a rotation of the container body; and a hooking portion configured and positioned to engage with the apparatus to receive a rotational force for rotating the container body; the apparatus including a driving member configured and positioned to apply the rotational force; a drive transmitting member configured and positioned to engage with the hooking portion to transmit the rotational force from the driving member to the hooking portion, the drive transmitting member, which has engaged with the hooking portion, being movable between a first position where the drive
    Type: Application
    Filed: March 10, 2009
    Publication date: September 17, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yusuke Yamada, Masafumi Takagi
  • Patent number: 7303191
    Abstract: The present provides a sheet conveying apparatus for conveying a sheet by sheet conveying device, including detection device which detects a skew of a conveyed sheet with respect to a sheet conveying direction, skew correcting device which pivots, in a state nipping the sheet in a skewed state, in a direction for correcting the skew of the sheet, based on a detection signal from the detection device, and control device provided with calculation device which calculates a front end position of the sheet of which skew is corrected by the pivotal movement of the skew correcting device, based on a detection signal from the detection device.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: December 4, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masafumi Takagi, Takeshi Suga
  • Patent number: 7300054
    Abstract: A sheet conveying apparatus for conveying a sheet along a sheet path, has a skew detecting unit for detecting the skew of the sheet being conveyed, a skew correcting unit rotatable in a direction to correct the skew of the sheet in a state nipping the sheet in its skew state, on the basis of a detection signal from the skew detecting unit, a position correcting unit for moving the skew correcting unit in a direction intersecting with the sheet conveying direction, and a controller for controlling so as to move the skew correcting unit in the direction intersecting with the sheet conveying direction by the position correcting unit while conveying the sheet by the skew correcting unit, in order to convey the sheet in a state coincident with the sheet conveying direction when the skew correcting unit is rotated to correct the skew of the sheet and convey the sheet in the rotated state.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: November 27, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeshi Suga, Masafumi Takagi
  • Patent number: 7111654
    Abstract: A developer supply container detachably mountable to an image forming apparatus, includes a container body for containing a developer; a discharge opening for permitting discharge of the developer from the container body; shutter means for unsealing and sealing the discharge opening; wherein the shutter means has a first shutter member and a second shutter member resealably provided at a position facing to the discharge opening.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: September 26, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masafumi Takagi
  • Publication number: 20060000520
    Abstract: A developer supply container detachably mountable to an image forming apparatus, includes a container body for containing a developer; a discharge opening for permitting discharge of the developer from the container body; shutter means for unsealing and sealing the discharge opening; wherein the shutter means has a first shutter member and a second shutter member resealably provided at a position facing to the discharge opening.
    Type: Application
    Filed: August 15, 2005
    Publication date: January 5, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventor: Masafumi Takagi
  • Patent number: 6971421
    Abstract: A developer supply container detachably mountable to an image forming apparatus, includes a container body for containing a developer; a discharge opening for permitting discharge of the developer from the container body; shutter means for unsealing and sealing the discharge opening; wherein the shutter means has a first shutter member and a second shutter member resealably provided at a position facing to the discharge opening.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: December 6, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masafumi Takagi
  • Publication number: 20050035528
    Abstract: The present-invention has as its object to provide a sheet conveying apparatus which can improve the correction accuracy of a sheet and can prevent the skew feeding of the sheet, and for this purpose, it provides a sheet conveying apparatus for conveying a sheet by sheet conveying means disposed along a sheet conveying path, including: skew detecting means for detecting the skew of the sheet being conveyed with respect to a sheet conveying direction; skew correcting means rotatable in a direction to correct the skew of the sheet in a state nipping the sheet in its skew state, on the basis of a detection signal from the skew detecting means; position correcting means for moving the skew correcting means in a direction intersecting with a sheet conveying direction; and control means for controlling so as to move the skew correcting means in the direction intersecting with the sheet conveying direction by the position correcting means while conveying the sheet by the skew correcting means, in order to convey the
    Type: Application
    Filed: July 19, 2004
    Publication date: February 17, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takeshi Suga, Masafumi Takagi
  • Publication number: 20050030600
    Abstract: The present provides a sheet conveying apparatus for conveying a sheet by sheet conveying device, including detection device which detects a skew of a conveyed sheet with respect to a sheet conveying direction, skew correcting device which pivots, in a state nipping the sheet in a skewed state, in a direction for correcting the skew of the sheet, based on a detection signal from the detection device, and control device provided with calculation device which calculates a front end position of the sheet of which skew is corrected by the pivotal movement of the skew correcting device, based on a detection signal from the detection device.
    Type: Application
    Filed: July 27, 2004
    Publication date: February 10, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masafumi Takagi, Takeshi Suga
  • Publication number: 20040123919
    Abstract: A developer supply container detachably mountable to an image forming apparatus, includes a container body for containing a developer; a discharge opening for permitting discharge of the developer from the container body; shutter means for unsealing and sealing the discharge opening; wherein the shutter means has a first shutter member and a second shutter member resealably provided at a position facing to the discharge opening.
    Type: Application
    Filed: September 22, 2003
    Publication date: July 1, 2004
    Applicant: Canon Kabushiki Kaisha
    Inventor: Masafumi Takagi
  • Patent number: 4891672
    Abstract: An image forming apparatus has a main assembly including an image bearing member and a device for forming a latent image on the image bearing member and an; accommodating device for accommodating a plurality of developing devices; the main assembly further including first developing device moving device for moving the developing devices; the accommodating device including second developing device moving device for moving the developing devices to a position at which the developing devices can be supplied into the main assembly and third developing device moving device for moving the developing devices from the supplying position into the main assembly; device for selecting a developing device for developing a latent image formed by the image forming device; device for starting image forming operation by the image forming device; and control device for controlling the first and second moving device, the control device operating the second moving device in response to a signal from the selecting device to place
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: January 2, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masafumi Takagi