Patents by Inventor Tomokazu Tsuchiya

Tomokazu Tsuchiya 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: 10998122
    Abstract: Disclosed herein is a common mode filter that includes a winding core part including a first winding area positioned at one end side in an axial direction, a second winding area positioned at other end side in the axial direction, and a third winding area positioned between the first and second winding areas; and first and second wires wound in a same direction around the winding core part. The first wire is aligned and wound in the first and second winding areas, and the second wire is wound on the first wire in the first and second winding areas. The first and second wires cross each other in the third winding area and are separated at least partially in the third winding area.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: May 4, 2021
    Assignee: TDK CORPORATION
    Inventors: Yuma Komaya, Miki Kusakabe, Tomokazu Tsuchiya
  • Patent number: 10943726
    Abstract: Disclosed herein is a common mode filter that includes a winding core part including first to third winding areas and first and second wires wound in a same direction around the winding core part and crossing each other in the third winding area. The first wire is aligned and wound in the first and second winding areas, and the second wire is aligned and wound on the first wire in the first and second winding areas, whereby a plurality of winding blocks are formed. The winding blocks include a first winding block positioned in the first winding area and second and third winding blocks positioned in the second winding area. The second wire constituting the second winding block and the second wire constituting the third winding block are separated from each other.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: March 9, 2021
    Assignee: TDK CORPORATION
    Inventors: Yuma Komaya, Miki Kusakabe, Tomokazu Tsuchiya
  • Publication number: 20200381169
    Abstract: Disclosed herein is a common mode filter that includes a winding core part including first to third winding areas and first and second wires wound in a same direction around the winding core part and crossing each other in the third winding area. The first wire is aligned and wound in the first and second winding areas, and the second wire is aligned and wound on the first wire in the first and second winding areas, whereby a plurality of winding blocks are formed. The winding blocks include a first winding block positioned in the first winding area and second and third winding blocks positioned in the second winding area. The second wire constituting the second winding block and the second wire constituting the third winding block are separated from each other.
    Type: Application
    Filed: August 19, 2020
    Publication date: December 3, 2020
    Applicant: TDK Corporation
    Inventors: Yuma KOMAYA, Miki Kusakabe, Tomokazu Tsuchiya
  • Patent number: 10784038
    Abstract: Disclosed herein is a common mode filter that includes a winding core part including first to third winding areas and first and second wires wound in a same direction around the winding core part and crossing each other in the third winding area. The first wire is aligned and wound in the first and second winding areas, and the second wire is aligned and wound on the first wire in the first and second winding areas, whereby a plurality of winding blocks are formed. The winding blocks include a first winding block positioned in the first winding area and second and third winding blocks positioned in the second winding area. The second wire constituting the second winding block and the second wire constituting the third winding block are separated from each other.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: September 22, 2020
    Assignee: TDK CORPORATION
    Inventors: Yuma Komaya, Miki Kusakabe, Tomokazu Tsuchiya
  • Publication number: 20200243251
    Abstract: Disclosed herein is a coil component that includes a winding core part, and first and second wires wound around the winding core part. The first and second wires constitute at least three winding layers on the winding core part. A i-th (i is an integer equal to or larger than 1) turn, a (i+1) turn, and a (i+2) turn of each of the first and second wires are positioned in mutually different winding layers.
    Type: Application
    Filed: January 24, 2020
    Publication date: July 30, 2020
    Applicant: TDK CORPORATIO
    Inventors: Hanako YOSHINO, Hiroshi SUZUKI, Daisuke URABE, Keigo HIGASHIDA, Tomokazu TSUCHIYA
  • Publication number: 20200243257
    Abstract: Disclosed herein is a coil component that includes a winding core part and a wire wound around the winding core part. An i-th turn (i is an integer equal to or larger than 1) to a j-th turn (j is an integer equal to or larger than (i+2)) of the wire are wound in this order around the winding core part in an aligned state. A (j-th+1) turn of the wire is wound around a valley line formed by the i-th turn and a (i-th+1) turn. A (j-th+2) turn of the wire is wound adjacent to the j-th turn around the winding core part.
    Type: Application
    Filed: January 24, 2020
    Publication date: July 30, 2020
    Applicant: TDK CORPORATION
    Inventors: Hanako YOSHINO, Hiroshi SUZUKI, Daisuke URABE, Keigo HIGASHIDA, Tomokazu TSUCHIYA
  • Publication number: 20200243244
    Abstract: Disclosed herein is a coil component that includes a winding core part and first and second wires wound around the winding core part. The first and second wires constitute at least three winding layers on the winding core part. The same turns of the first and second wires are positioned in mutually different winding layers over a plurality of turns.
    Type: Application
    Filed: January 24, 2020
    Publication date: July 30, 2020
    Applicant: TDK CORPORATION
    Inventors: Hanako Yoshino, Hiroshi Suzuki, Daisuke Urabe, Keigo Higashida, Tomokazu Tsuchiya
  • Publication number: 20180211764
    Abstract: Disclosed herein is a common mode filter that includes a winding core part including first to third winding areas and first and second wires wound in a same direction around the winding core part and crossing each other in the third winding area. The first wire is aligned and wound in the first and second winding areas, and the second wire is aligned and wound on the first wire in the first and second winding areas, whereby a plurality of winding blocks are formed. The winding blocks include a first winding block positioned in the first winding area and second and third winding blocks positioned in the second winding area. The second wire constituting the second winding block and the second wire constituting the third winding block are separated from each other.
    Type: Application
    Filed: January 22, 2018
    Publication date: July 26, 2018
    Applicant: TDK Corporation
    Inventors: Yuma KOMAYA, Miki KUSAKABE, Tomokazu TSUCHIYA
  • Publication number: 20180211763
    Abstract: Disclosed herein is a common mode filter that includes a winding core part including a first winding area positioned at one end side in an axial direction, a second winding area positioned at other end side in the axial direction, and a third winding area positioned between the first and second winding areas; and first and second wires wound in a same direction around the winding core part. The first wire is aligned and wound in the first and second winding areas, and the second wire is wound on the first wire in the first and second winding areas. The first and second wires cross each other in the third winding area and are separated at least partially in the third winding area.
    Type: Application
    Filed: January 22, 2018
    Publication date: July 26, 2018
    Applicant: TDK Corporation
    Inventors: Yuma Komaya, Miki Kusakabe, Tomokazu Tsuchiya
  • Publication number: 20180101341
    Abstract: An image forming device includes a memory, a memory controller, an error detector, a determiner, a print controller, a display, and a display controller. The memory controller acquires print information transmitted from an external device, and stores and controls the print information in the memory. The error detector detects a print error after start of printing of the print information. The determiner determines whether to execute sheet recovery processing to reprint a page in which the print error has occurred. The print controller controls a printing unit to execute the sheet recovery processing with the print information stored in the memory when a determination result to execute the sheet recovery processing is obtained. The display controller displays on the display a message indicating that the sheet recovery processing is not executed when a determination result not to execute the sheet recovery processing is obtained.
    Type: Application
    Filed: September 18, 2017
    Publication date: April 12, 2018
    Applicant: Ricoh Company, Ltd.
    Inventors: Tomokazu TSUCHIYA, Kazuya TANI, Daiki SAKURADA, Masaki NAKAMURA
  • Patent number: 8712954
    Abstract: In an image forming apparatus, an operation result output part outputs a result of operation of a component. An operation result information creation part creates operation result information by giving information identification character information, which is determined by the component or the result of operation of the component, to the result of operation of the component. An identifier table stores the information identification character information and a unique identifier related to each other and the result of operation of the component and a unique identifier related to each other. An operation result information conversion part reads the identifier related to the information identification character information from the identifier table and converts the operation result information into after conversion operation result information in which at least the information identification character information is replaced by the identifier.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: April 29, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Tomokazu Tsuchiya
  • Patent number: 8550579
    Abstract: An image forming device includes a pump which supplies a recording fluid contained in a first container to a second container via a tube, and a control unit configured to perform rotation of a roller disposed in the pump to press the tube and feed the recording fluid in the tube. When a negative pressure in the second container is not formed by performing a first backward rotation of the roller by a predetermined amount, the control unit performs a forward rotation of the roller and performs a second backward rotation of the roller after an end of the forward rotation.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: October 8, 2013
    Assignee: Ricoh Company, Ltd.
    Inventor: Tomokazu Tsuchiya
  • Publication number: 20120303679
    Abstract: In an image forming apparatus, an operation result output part outputs a result of operation of a component. An operation result information creation part creates operation result information by giving information identification character information, which is determined by the component or the result of operation of the component, to the result of operation of the component. An identifier table stores the information identification character information and a unique identifier related to each other and the result of operation of the component and a unique identifier related to each other. An operation result information conversion part reads the identifier related to the information identification character information from the identifier table and converts the operation result information into after conversion operation result information in which at least the information identification character information is replaced by the identifier.
    Type: Application
    Filed: May 16, 2012
    Publication date: November 29, 2012
    Applicant: RICOH COMPANY, LTD.
    Inventor: Tomokazu TSUCHIYA
  • Patent number: 8317282
    Abstract: An image forming apparatus includes a head to eject liquid droplets, a sub-tank having a container to store an amount of liquid supplied to the head, a negative pressure generator unit generating a negative pressure and an air introducing mechanism to introduce air, a main-tank to supply the amount of liquid into the sub-tank, a pressure detector unit to detect a pressure inside the sub-tank, and a controller to control an image forming operation using a remaining amount of liquid in the sub-tank while the main-tank is at an end status, where the controller determines whether the pressure inside the sub-tank is within a normal range, causes, if the detected pressure is not within the normal range, the air introducing mechanism to introduce air to raise the pressure inside the sub-tank, and causes the head to eject non-image forming liquid to cause the pressure to fall within the normal range.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: November 27, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiaki Satoh, Yuuichiroh Tsujiguchi, Yasumasa Mihara, Tomokazu Tsuchiya
  • Patent number: 8177321
    Abstract: An image forming apparatus includes a voltage applying unit to apply a voltage to and charge a surface of transport belt, a leak judging unit to judge a charge leak on the surface of the transport belt, and a recovery operation unit to perform a charge leak recovery operation in which the transport belt is driven in a state where the voltage applying unit applies no voltage to the transport belt, if the leak judging unit judges that the charge leak is generated on the surface of the transport belt. The leak judging unit again judges whether the charge leak is generated on the surface of the transport belt after the recovery operation unit performs the charge leak recovery operation.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: May 15, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomokazu Tsuchiya, Takafumi Shimizu
  • Patent number: 8007064
    Abstract: An image forming apparatus includes ink cartridges, image forming units, an ink-remaining-amount manager, a maintenance determiner, an information writer, an ink-amount estimator, and a maintenance-executability determiner. If an ink near-empty or empty state occurs in one of the ink cartridges due to image formation, the ink-amount estimator estimates an amount of ink required to execute the maintenance on the other ink cartridges based on the at least one of the need for and the type of maintenance determined by the maintenance determiner. If the maintenance-executability determiner determines that the maintenance is unexecutable on at least one of the other ink cartridges based on the required ink amount and a remaining ink amount, the maintenance-executability determiner determines that the unexecutable ink cartridge is at an ink near-empty or empty state and stops writing or updating information indicative of a spent state on the memory of the unexecutable ink cartridge.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: August 30, 2011
    Assignee: Ricoh Company Limited
    Inventor: Tomokazu Tsuchiya
  • Publication number: 20110148955
    Abstract: An image forming device includes a pump which supplies a recording fluid contained in a first container to a second container via a tube, and a control unit configured to perform rotation of a roller disposed in the pump to press the tube and feed the recording fluid in the tube. When a negative pressure in the second container is not formed by performing a first backward rotation of the roller by a predetermined amount, the control unit performs a forward rotation of the roller and performs a second backward rotation of the roller after an end of the forward rotation.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 23, 2011
    Applicant: RICOH COMPANY, LTD.
    Inventor: Tomokazu TSUCHIYA
  • Publication number: 20110063344
    Abstract: An image forming apparatus includes a head to eject liquid droplets, a sub-tank having a container to store an amount of liquid supplied to the head, a negative pressure generator unit generating a negative pressure and an air introducing mechanism to introduce air, a main-tank to supply the amount of liquid into the sub-tank, a pressure detector unit to detect a pressure inside the sub-tank, and a controller to control an image forming operation using a remaining amount of liquid in the sub-tank while the main-tank is at an end status, where the controller determines whether the pressure inside the sub-tank is within a normal range, causes, if the detected pressure is not within the normal range, the air introducing mechanism to introduce air to raise the pressure inside the sub-tank, and causes the head to eject non-image forming liquid to cause the pressure to fall within the normal range.
    Type: Application
    Filed: September 7, 2010
    Publication date: March 17, 2011
    Inventors: Yoshiaki SATOH, Yuuichiroh Tsujiguchi, Yasumasa Mihara, Tomokazu Tsuchiya
  • Patent number: 7789475
    Abstract: In an image forming apparatus, a control unit determines that dirt is present on the linear scale when a detecting unit detects a change in a moving direction of a moving member while the moving member is moving at a constant speed.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: September 7, 2010
    Assignee: Ricoh Company, Limited
    Inventors: Takashi Morishita, Yoshimitsu Ogura, Kenji Kagami, Jun Watanabe, Yuji Ieiri, Tomokazu Tsuchiya, Shigeru Yoshigai
  • Publication number: 20100194795
    Abstract: An image forming apparatus includes a voltage applying unit to apply a voltage to and charge a surface of transport belt, a leak judging unit to judge a charge leak on the surface of the transport belt, and a recovery operation unit to perform a charge leak recovery operation in which the transport belt is driven in a state where the voltage applying unit applies no voltage to the transport belt, if the leak judging unit judges that the charge leak is generated on the surface of the transport belt. The leak judging unit again judges whether the charge leak is generated on the surface of the transport belt after the recovery operation unit performs the charge leak recovery operation.
    Type: Application
    Filed: January 25, 2010
    Publication date: August 5, 2010
    Inventors: Tomokazu Tsuchiya, Takafumi Shimizu