Patents by Inventor Mikio Nakajima

Mikio Nakajima 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: 10732551
    Abstract: A control device is configured to control an image forming apparatus to form an image on a recording medium. The control device includes circuitry configured to acquire a consumed direct current (DC) power value that is a DC power value consumed in the image forming apparatus, estimate a characteristic of the consumed DC power value in a period in which an image is formed on at least one recording medium, and determine a limit value of fixing power to be supplied to a fixing device of the image forming apparatus that fixes an image on a recording medium, to have cyclicity corresponding to the characteristic of the consumed DC power value.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: August 4, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Mikio Nakajima
  • Publication number: 20200033763
    Abstract: A control device is configured to control an image forming apparatus to form an image on a recording medium. The control device includes circuitry configured to acquire a consumed direct current (DC) power value that is a DC power value consumed in the image forming apparatus, estimate a characteristic of the consumed DC power value in a period in which an image is formed on at least one recording medium, and determine a limit value of fixing power to be supplied to a fixing device of the image forming apparatus that fixes an image on a recording medium, to have cyclicity corresponding to the characteristic of the consumed DC power value.
    Type: Application
    Filed: July 17, 2019
    Publication date: January 30, 2020
    Applicant: Ricoh Company, Ltd.
    Inventor: MIKIO NAKAJIMA
  • Patent number: 10420269
    Abstract: A mounting inspection device includes a missing component inspection device and a foreign object inspection device. The missing component inspection device is for performing missing component inspection of components mounted on a printed circuit board. The foreign object inspection device is for performing foreign object inspection in which foreign objects on a printed circuit board are inspected with regard to the printed circuit board on which a missing component is detected, based on results of the missing component inspection carried out by the missing component inspection device.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: September 17, 2019
    Assignee: FUJI CORPORATION
    Inventors: Mikio Nakajima, Mitsutaka Inagaki
  • Patent number: 10218866
    Abstract: An electronic apparatus includes a first proximity sensor and a second proximity sensor. The first proximity sensor and a second proximity sensor are arranged adjacent to each other in a horizontal direction. The first proximity sensor and a second proximity sensor have detection ranges that overlap at a distance from a middle point between an imaginary line connecting the first proximity sensor and the second proximity sensor in a perpendicular direction in relation to a front surface of the electronic apparatus.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: February 26, 2019
    Assignee: Ricoh Company, Ltd.
    Inventor: Mikio Nakajima
  • Publication number: 20180041655
    Abstract: An electronic apparatus includes a first proximity sensor and a second proximity sensor. The first proximity sensor and a second proximity sensor are arranged adjacent to each other in a horizontal direction. The first proximity sensor and a second proximity sensor have detection ranges that overlap at a distance from a middle point between an imaginary line connecting the first proximity sensor and the second proximity sensor in a perpendicular direction in relation to a front surface of the electronic apparatus.
    Type: Application
    Filed: July 14, 2017
    Publication date: February 8, 2018
    Inventor: Mikio NAKAJIMA
  • Patent number: 9756230
    Abstract: A number one camera and number two camera are provided in the top section and lower section of a mounting and inspection data creation device. A number one lighting device and top side shielding plate are provided on the lower side of a lens of number one camera. A number two lighting device and lower side shielding plate are provided on the top side of a lens of number two camera. Component is set on transparent setting plate that is positioned between top side shielding plate and lower side shielding plate, and when imaging the top side (pickup side) of component with number one camera, top side shielding plate is slid out of the imaging area of number one camera. When imaging the bottom side (mounting side) of component with number two camera, lower side shielding plate is slid out of the imaging area of number two camera. Mounting data is created based on component bottom side image taken by number two camera, and inspection data is created based on component top side image taken by number one camera.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: September 5, 2017
    Assignee: FUJI MACHINE MFG. CO., LTD.
    Inventors: Masafumi Amano, Mikio Nakajima, Kenji Sugiyama
  • Publication number: 20160227683
    Abstract: A mounting inspection device having: a missing component inspection device for performing missing component inspection of components mounted on a printed circuit board; and a foreign object inspection device for performing foreign object inspection in which foreign objects on a printed circuit board are inspected with regard to a printed circuit board on which a missing component is detected, based on results of the missing component inspection carried out by the missing component inspection device.
    Type: Application
    Filed: September 17, 2013
    Publication date: August 4, 2016
    Applicant: FUJI MACHINE MFG. CO., LTD.
    Inventors: Mikio NAKAJIMA, Mitsutaka INAGAKI
  • Patent number: 9300136
    Abstract: An activation control apparatus includes a voltage fluctuation obtainer to obtain voltage fluctuation amplitude of an external power source at a given voltage, the voltage fluctuation caused when activating an apparatus using the external power source; a voltage fluctuation detector to detect the voltage fluctuation of the external power source at the given voltage; an activation controller to determine whether the voltage fluctuation amplitude obtained by the voltage fluctuation obtainer at the given voltage of the external power source, detected by the voltage fluctuation detector, is within a preset allowable voltage fluctuation range, and to control activation of the apparatus using the external power source based on a result of the voltage fluctuation determination made by the activation controller.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: March 29, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Kiriko Chosokabe, Mikio Nakajima, Tomoyuki Yamashita
  • Patent number: 9207595
    Abstract: An image forming apparatus includes: an identification information acquiring unit that acquires identification information to identify a user; a usage history information acquiring unit that acquires usage history information for the user specified by the identification information; an output setting forecasting unit that forecasts output setting used by the user based on the usage history information; and a fixing temperature setting unit that sets a fixing temperature based on the forecasted output setting.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: December 8, 2015
    Assignee: Ricoh Company, Limited
    Inventors: Kiriko Chosokabe, Mikio Nakajima, Homare Ehara
  • Patent number: 9176439
    Abstract: An image forming apparatus includes: an identification information acquiring unit that acquires identification information to identify a user; a usage history information acquiring unit that acquires usage history information for the user specified by the identification information; an output setting forecasting unit that forecasts output setting used by the user based on the usage history information; and a fixing temperature setting unit that sets a fixing temperature based on the forecasted output setting.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: November 3, 2015
    Assignee: Ricoh Company, Limited
    Inventors: Kiriko Chosokabe, Mikio Nakajima, Homare Ehara
  • Patent number: 9048687
    Abstract: A power supply device includes: a main power supply configured to feed power to a load with constant-voltage output using an external power supply; an auxiliary power supply configured to feed power to the load using an internal power storage unit; a constant-current/constant-voltage switching power supply configured to feed a part of current flowing through the load by which part the current exceeds an upper limit value of output current of the main power supply instructed by a current upper-limit instruction unit, with the constant-current output from the auxiliary power supply; and an output switching unit switching the constant-current/constant-voltage switching power supply from the constant-current output to the constant-voltage output when a power cut monitoring unit determines stop of power supply from the external power supply.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: June 2, 2015
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Mikio Nakajima, Tetsuya Yano, Hideo Nakagawa, Yu Yoshioka
  • Publication number: 20150146005
    Abstract: A number one camera and number two camera are provided in the top section and lower section of a mounting and inspection data creation device. A number one lighting device and top side shielding plate are provided on the lower side of a lens of number one camera. A number two lighting device and lower side shielding plate are provided on the top side of a lens of number two camera. Component is set on transparent setting plate that is positioned between top side shielding plate and lower side shielding plate, and when imaging the top side (pickup side) of component with number one camera, top side shielding plate is slid out of the imaging area of number one camera. When imaging the bottom side (mounting side) of component with number two camera, lower side shielding plate is slid out of the imaging area of number two camera. Mounting data is created based on component bottom side image taken by number two camera, and inspection data is created based on component top side image taken by number one camera.
    Type: Application
    Filed: May 10, 2012
    Publication date: May 28, 2015
    Applicant: FUJI MACHINE MFG. CO., LTD.
    Inventors: Masafumi Amano, Mikio Nakajima, Kenji Sugiyama
  • Patent number: 8973255
    Abstract: A circuit-substrate-related-operation performing apparatus for performing a circuit-substrate-related operation which is an operation on a circuit substrate, including: a plurality of heads including at least one work head and at least one detection head; a head holding device configured to hold, at a holding portion thereof, one of the plurality of heads; a moving device configured to move the head holding device; a head stock device in which the plurality of heads are stocked; and a controller configured to control the circuit-substrate-related-operation performing apparatus, wherein the controller includes a head attachment control portion configured to control the moving device and the head holding device such that the head holding device is moved to a set position which is set with respect to the head stock device and such that an arbitrary one of the plurality of heads is held by the head holding device.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: March 10, 2015
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Masafumi Amano, Kazumi Hoshikawa, Mikio Nakajima, Hiroyuki Ao, Yusuke Yamakage
  • Patent number: 8880912
    Abstract: A power supply device provided with a main power supply unit that supplies generated predetermined power to an electric load, a current detecting unit, a current indicating unit, an electric storage unit, an auxiliary power supply unit, and a control unit that determines an upper limit current value to be output to the current indicating unit on the basis of at least a condition of the electric load, and controls the upper limit current value such that power supplied from the auxiliary power supply unit to the electric load is converged in a predetermined convergence time when the power supply from the auxiliary power supply unit to the electric load is stopped or reduced.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Mikio Nakajima, Tetsuya Yano, Tomohide Kondo
  • Publication number: 20140270836
    Abstract: An image forming apparatus includes: an identification information acquiring unit that acquires identification information to identify a user; a usage history information acquiring unit that acquires usage history information for the user specified by the identification information; an output setting forecasting unit that forecasts output setting used by the user based on the usage history information; and a fixing temperature setting unit that sets a fixing temperature based on the forecasted output setting.
    Type: Application
    Filed: February 28, 2014
    Publication date: September 18, 2014
    Applicant: RICOH COMPANY, LIMITED
    Inventors: Kiriko CHOSOKABE, Mikio NAKAJIMA, Homare EHARA
  • Publication number: 20140098395
    Abstract: An activation control apparatus includes a voltage fluctuation obtainer to obtain voltage fluctuation amplitude of an external power source at a given voltage, the voltage fluctuation caused when activating an apparatus using the external power source; a voltage fluctuation detector to detect the voltage fluctuation of the external power source at the given voltage; an activation controller to determine whether the voltage fluctuation amplitude obtained by the voltage fluctuation obtainer at the given voltage of the external power source, detected by the voltage fluctuation detector, is within a preset allowable voltage fluctuation range, and to control activation of the apparatus using the external power source based on a result of the voltage fluctuation determination made by the activation controller.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 10, 2014
    Inventors: Kiriko Chosokabe, Mikio Nakajima, Tomoyuki Yamashita
  • Publication number: 20130099573
    Abstract: A power supply device includes: a main power supply configured to feed power to a load with constant-voltage output using an external power supply; an auxiliary power supply configured to feed power to the load using an internal power storage unit; a constant-current/constant-voltage switching power supply configured to feed a part of current flowing through the load by which part the current exceeds an upper limit value of output current of the main power supply instructed by a current upper-limit instruction unit, with the constant-current output from the auxiliary power supply; and an output switching unit switching the constant-current/constant-voltage switching power supply from the constant-current output to the constant-voltage output when a power cut monitoring unit determines stop of power supply from the external power supply.
    Type: Application
    Filed: October 16, 2012
    Publication date: April 25, 2013
    Inventors: Mikio Nakajima, Tetsuya Yano, Hideo Nakagawa, Yu Yoshioka
  • Publication number: 20120151756
    Abstract: A circuit-substrate-related-operation performing apparatus for performing a circuit-substrate-related operation which is an operation on a circuit substrate, including: a plurality of heads including at least one work head and at least one detection head; a head holding device configured to hold, at a holding portion thereof, one of the plurality of heads; a moving device configured to move the head holding device; a head stock device in which the plurality of heads are stocked; and a controller configured to control the circuit-substrate-related-operation performing apparatus, wherein the controller includes a head attachment control portion configured to control the moving device and the head holding device such that the head holding device is moved to a set position which is set with respect to the head stock device and such that an arbitrary one of the plurality of heads is held by the head holding device.
    Type: Application
    Filed: November 7, 2011
    Publication date: June 21, 2012
    Applicant: FUJI MACHINE MFG. CO., LTD.
    Inventors: Masafumi AMANO, Kazumi HOSHIKAWA, Mikio NAKAJIMA, Hiroyuki AO, Yusuke YAMAKAGE
  • Publication number: 20120066522
    Abstract: A power supply device provided with a main power supply unit that supplies generated predetermined power to an electric load, a current detecting unit, a current indicating unit, an electric storage unit, an auxiliary power supply unit, and a control unit that determines an upper limit current value to be output to the current indicating unit on the basis of at least a condition of the electric load, and controls the upper limit current value such that power supplied from the auxiliary power supply unit to the electric load is converged in a predetermined convergence time when the power supply from the auxiliary power supply unit to the electric load is stopped or reduced.
    Type: Application
    Filed: September 8, 2011
    Publication date: March 15, 2012
    Inventors: Mikio Nakajima, Tetsuya Yano, Tomohide Kondo
  • Patent number: 7428329
    Abstract: An existing electronic part mounting device can have the function of correcting the parallax of a camera pickup image only by addition or modification of software without using a telecentric lens. For this, storage means stores in advance parallax data representing the relationship between the height of an electronic part to be picked up by a camera and a part size per pixel for each pixel of the pickup image or image magnification. When picking up the electronic part adsorbed by an adsorption nozzle (11) by the camera, the part height data on the height of the electronic part is acquired, so that according to the part height data and the aforementioned parallax data, a part size per pixel or image magnification is corrected for each pixel of the pickup image of the electronic part, thereby correcting the parallax of the pickup image of the electronic part.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: September 23, 2008
    Assignees: Fuji Machine Mfg. Co., Ltd., Edeclinseysystem Co., Ltd.
    Inventors: Kazumi Hoshikawa, Mikio Nakajima