Patents by Inventor Tatsuhiko Nakamura
Tatsuhiko Nakamura 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).
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Publication number: 20240124244Abstract: A conveying roller, a conveyor device, and an inclined conveyor for objects. A conveying roller comes into contact with an object and moves the object, the conveying roller including: a core member and a plurality of blade-shaped pieces, the blade-shaped piece being elastically deformable and being provided around the core member.Type: ApplicationFiled: March 7, 2022Publication date: April 18, 2024Inventors: Kazuo ITOH, Tatsuhiko NAKAMURA, Koji UEDA, Atsushi NISHIMURA
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Patent number: 11928283Abstract: A display device includes: a display panel including a sensor unit configured to detect a touch operation; a first control unit configured to supply a first signal to the display panel; and a second control unit configured to calculate touch information related to the touch operation and to supply the touch information to the first control unit. The first control unit includes: a signal generator configured to generate the first signal based on an image signal supplied from an external image signal supply source; and an overdrive circuit configured to perform a process of increasing an amplitude of the first signal generated by the signal generator. The overdrive circuit is actuated based on the touch information from the second control unit. The first control unit, in response to the actuation of the overdrive circuit, supplies the first signal having the amplitude increased by the overdrive circuit to the display panel.Type: GrantFiled: January 10, 2023Date of Patent: March 12, 2024Assignee: Sharp Display Technology CorporationInventors: Jin Miyazawa, Noriyuki Tanaka, Daiji Kitagawa, Tatsuhiko Suyama, Yousuke Nakamura, Daisuke Suehiro
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Publication number: 20240078975Abstract: A display device is provided with: a display portion including a plurality of scanning lines, a plurality of data lines, and a plurality of pixel circuits; a scanning line drive circuit; and a data line drive circuit. The level of a data voltage applied to the data line decreases when a frame frequency is switched higher, and increases when the frame frequency is switched lower. This can prevent a display flicker when the frame frequency is switched. The level of the data voltage may change when the frame frequency is switched, and may return to its initial level over a plurality of frame periods. The timing of the control signal used to drive the display portion may change in accordance with the frame frequency to cause the length of the charging period of the pixel circuit to change in accordance with the frame frequency.Type: ApplicationFiled: January 13, 2021Publication date: March 7, 2024Inventors: Kazuo NAKAMURA, Noriyuki TANAKA, Masaaki NISHIO, Yousuke NAKAMURA, Tatsuhiko SUYAMA
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Patent number: 11760575Abstract: A conveyance device and a planar conveyance apparatus capable of carrying out an article in any direction. The conveyance device includes an energizing mechanism unit configured to energize and move an article and a rotation mechanism unit configured to rotate the energizing mechanism unit itself, and is capable of changing a moving direction of the article by rotating the energizing mechanism unit with the rotation mechanism unit. The energizing mechanism unit includes an energizing mechanism side motor, and the energizing mechanism side motor includes a coil on a center side and an outer body surrounding the coil, and is an outer rotor type motor in which the outer body rotates. The energizing mechanism side motor is disposed such that a central shaft of the outer body is in a substantially horizontal posture, and the outer body energizes the article by coming into contact with the article directly or through a freely-rotating rotor interposed therebetween.Type: GrantFiled: January 26, 2021Date of Patent: September 19, 2023Assignee: Itoh Denki Co., Ltd.Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Hideo Naiki, Kentarou Iwasawa
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Publication number: 20230087156Abstract: A conveyance device and a planar conveyance apparatus having a simple structure and capable of carrying out an article in any direction are developed. A conveyance device 1 that includes an energizing mechanism unit 2 configured to energize and move an article and a rotation mechanism unit 3 configured to rotate the energizing mechanism unit itself, and is capable of changing a moving direction of the article by rotating the energizing mechanism unit 2 with the rotation mechanism unit 3. The energizing mechanism unit 2 includes an energizing mechanism side motor 10, and the energizing mechanism side motor 10 includes a coil 32 on a center side and an outer body 30 surrounding the coil 32, and is an outer rotor type motor in which the outer body 30 rotates.Type: ApplicationFiled: January 26, 2021Publication date: March 23, 2023Inventors: Kazuo ITOH, Tatsuhiko NAKAMURA, Hideo NAIKI, Kentarou IWASAWA
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Patent number: 11273986Abstract: A conveyance roller 3 including a support shaft 31, a main rotating portion 34, and a sub rotating portion 35, and a driving body 50 that is in contact with the main rotating portion 34 and the sub rotating portion 35 and that supplies a rotational force to the main rotating portion 34 and the sub rotating portion 35 are provided, wherein the main rotating portion 34 and the sub rotating portion 35 are attached along the support shaft 31 and are rotatable independently of each other around the support shaft 31, the sub rotating portion 35 is not configured to contact an object to be conveyed but the main rotating portion 34 is configured to contact the object to be conveyed and bias the object to be conveyed, the driving body 50 is rotated by power around a rotation shaft 51 in a direction intersecting with the support shaft 31, the support shaft 31 is configured to change an orientation of the support shaft 31 by rotating around the rotation shaft 51, and the driving body 50 is in contact with the main rotatType: GrantFiled: October 29, 2020Date of Patent: March 15, 2022Assignee: Itoh Denki Co., Ltd.Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Koji Ueda, Takuya Nagasawa
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Patent number: 11097899Abstract: An objective is to develop a conveyor device capable of conveying a conveyance object in a plurality of directions. The conveyor device includes a roller portion (rotating body) 30 and a driving body 50. The rotating body 30 is rotatable around at least a first rotation axis 60, and the rotating body is rotatable around a second rotation axis 61 in a direction intersecting with the first rotation axis 60, and changes an attitude by rotating to change a direction of the first rotation axis 60. The driving body 50 is rotated by power around a third rotation axis 62, and the third rotation axis 62 extends in a direction intersecting with the first rotation axis 60. The driving body 50 is in contact with the rotating body at a position eccentric to one end in the direction of the first rotation axis 60 relative to the second rotation axis 61 regardless of attitude-changing of the rotating body.Type: GrantFiled: February 25, 2019Date of Patent: August 24, 2021Assignee: Itoh Denki Co., Ltd.Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Takahiro Itoh
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Publication number: 20210139244Abstract: A conveyance roller 3 including a support shaft 31, a main rotating portion 34, and a sub rotating portion 35, and a driving body 50 that is in contact with the main rotating portion 34 and the sub rotating portion 35 and that supplies a rotational force to the main rotating portion 34 and the sub rotating portion 35 are provided, wherein the main rotating portion 34 and the sub rotating portion 35 are attached along the support shaft 31 and are rotatable independently of each other around the support shaft 31, the sub rotating portion 35 is not configured to contact an object to be conveyed but the main rotating portion 34 is configured to contact the object to be conveyed and bias the object to be conveyed, the driving body 50 is rotated by power around a rotation shaft 51 in a direction intersecting with the support shaft 31, the support shaft 31 is configured to change an orientation of the support shaft 31 by rotating around the rotation shaft 51, and the driving body 50 is in contact with the main rotatType: ApplicationFiled: October 29, 2020Publication date: May 13, 2021Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Koji Ueda, Takuya Nagasawa
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Publication number: 20200385213Abstract: An objective is to develop a conveyor device capable of conveying a conveyance object in a plurality of directions. The conveyor device includes a roller portion (rotating body) 30 and a driving body 50. The rotating body 30 is rotatable around at least a first rotation axis 60, and the rotating body is rotatable around a second rotation axis 61 in a direction intersecting with the first rotation axis 60, and changes an attitude by rotating to change a direction of the first rotation axis 60. The driving body 50 is rotated by power around a third rotation axis 62, and the third rotation axis 62 extends in a direction intersecting with the first rotation axis 60. The driving body 50 is in contact with the rotating body at a position eccentric to one end in the direction of the first rotation axis 60 relative to the second rotation axis 61 regardless of attitude-changing of the rotating body.Type: ApplicationFiled: February 25, 2019Publication date: December 10, 2020Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Takahiro Itoh
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Patent number: 10766714Abstract: A lifting device 1 includes an upper station 2, a lower station 3, and lifting and lowering placing tables 10 and 11. The upper station 2 and the lower station 3 have horizontal placing tables 5 and 6, respectively. The horizontal placing tables 5 and 6 move only in the horizontal direction. The lifting and lowering placing tables 10 and 11 move only in the vertical direction. When any of the lifting and lowering placing tables 10 and 11 is in the upper station 2, the upper side horizontal placing table 5 is at a position adjacent to the lifting and lowering placing tables 10 and 11 to form a series of conveying passages. When the lifting and lowering placing tables 10 and 11 move away from the upper station 2, the upper side horizontal placing table 5 moves to a position where the lifting and lowering placing tables 10 and 11 used to exist.Type: GrantFiled: June 22, 2017Date of Patent: September 8, 2020Assignee: Itoh Denki Co., Ltd.Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Takuya Nagasawa
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Publication number: 20200122935Abstract: A lifting device 1 includes an upper station 2, a lower station 3, and lifting and lowering placing tables 10 and 11. The upper station 2 and the lower station 3 have horizontal placing tables 5 and 6, respectively. The horizontal placing tables 5 and 6 move only in the horizontal direction. The lifting and lowering placing tables 10 and 11 move only in the vertical direction. When any of the lifting and lowering placing tables 10 and 11 is in the upper station 2, the upper side horizontal placing table 5 is at a position adjacent to the lifting and lowering placing tables 10 and 11 to form a series of conveying passages. When the lifting and lowering placing tables 10 and 11 move away from the upper station 2, the upper side horizontal placing table 5 moves to a position where the lifting and lowering placing tables 10 and 11 used to exist.Type: ApplicationFiled: June 22, 2017Publication date: April 23, 2020Inventors: Kazuo ITOH, Tatsuhiko NAKAMURA, Takuya NAGASAWA
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Patent number: 10597237Abstract: The lifting and lowering apparatus includes a plurality of shelf members 6 and 7 and a lifting and lowering mechanism 8. The shelf members 6 and 7 respectively include placing tables A and B positioned on different heights, and each placing table is provided with a conveying unit 10. The shelf members 6 and 7 are lifted and lowered by the lifting and lowering mechanism 8, whereby the placing table A (B) of the shelf member 6 (7) which is one of the shelf members 6 and 7 is adjusted to be on the same height as the placing table B (A) of the other shelf member 7 (6), and with this state, an object is transferred from the placing table of one of the shelf members to the placing table of the other shelf member.Type: GrantFiled: September 28, 2018Date of Patent: March 24, 2020Assignee: ITOH DENKI CO., LTD.Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Koji Takahashi
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Patent number: 10577189Abstract: A conveyance device capable of performing traveling operation and turning operation, a planar conveyance apparatus, and a conveyance unit. A conveyance device 1 has a travel part 5 having a belt 2 for allowing an article to be placed, and a turning table 6 that supports the travel part 5. The belt 2 is an endless member suspended between a pair of rollers 3. The belt 2 travels by being engaged with a driving body 4 to which power of a motor for traveling 9 is transmitted by a drive shaft 14. Power of a motor for turning 8 is transmitted to the turning table 6, so that the turning table 6 turns. That is, when the motor for turning 8 is driven, the travel part 5 turns along with the turning table 6.Type: GrantFiled: June 24, 2016Date of Patent: March 3, 2020Assignee: ITOH DENKI CO., LTD.Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Kazuwo Miki
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Patent number: 10524318Abstract: A microwave oven has a magnetron (11) which generates microwaves to heat a heating object, and a control unit (100) which controls the magnetron (11). During heating operation in which the heating object is heated with microwaves generated from the magnetron (11), the control unit (100) controls the magnetron (11) so as to suppress abnormal operations of the magnetron (11) in response to a status of power supply supplied from outside.Type: GrantFiled: February 10, 2015Date of Patent: December 31, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Seiichi Hirano, Tatsuhiko Nakamura
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Patent number: 10486902Abstract: Provided is an article storage apparatus capable of effectively utilizing the capacity of a building. The article storage apparatus includes an article moving device 3. The article moving device 3 includes an X-direction travel wheel 38, a Y-direction travel wheel 48, a travel wheel lifting and lowering unit that lifts and lowers the travel wheels, and an article lifting and lowering unit that lifts and lowers an article. It is possible to lower the X-direction travel wheel 38 or the Y-direction travel wheel 48 so as to be set down on a travel passage by the travel wheel lifting and lowering unit and rotate the set-down travel wheel to cause the article moving device to travel in an X direction or a Y direction. It is possible to lift the article lifting and lowering unit to pick up an article on an article supporting member or lower the article lifting and lowering unit to transfer the article previously lifted by the article lifting and lowering unit onto the article supporting member.Type: GrantFiled: December 16, 2015Date of Patent: November 26, 2019Assignee: Itoh Denki Co., Ltd.Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Kazuwo Miki
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Patent number: 10464756Abstract: A conveying device has: a main conveyor unit; a sub conveyor unit; and a lifting and lowering unit that lifts and lowers at least one of the main conveyor unit and the sub conveyor unit, wherein the main conveyor unit has a main conveying passage disposed in a fixed region, the main conveying passage conveying a conveyance object, wherein the sub conveyor unit has a sub conveying passage disposed in the fixed region, the sub conveying passage conveying the conveyance object in an intersecting direction with respect to a conveying direction of the main conveying passage, wherein a conveyance attitude is capable of being changed between a main conveyance attitude in which a conveying surface of the sub conveying passage is located below a conveying surface of the main conveying passage, and a sub conveyance attitude in which both ends in the intersecting direction of the conveying surface of the sub conveying passage are located above the conveying surface of the main conveying passage, and in the sub conveyancType: GrantFiled: October 11, 2017Date of Patent: November 5, 2019Assignee: Itoh Denki Co., Ltd.Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Koji Ueda, Takahiro Itoh
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Patent number: 10308442Abstract: A discharge device is constructed so that, when conveyance destinations for a preceding conveyed object and a closely spaced succeeding conveyed object are different, the objects can be conveyed without stopping the conveyance of the succeeding conveyed object. The device has: a) discharge members that extend and retract between a plurality of conveying bodies in a main conveying conveyor, come into contact with a conveyed object when the discharge members extend between the conveying bodies, and impart a conveying force to the conveyed object, the force being in a direction different from that of the conveying bodies; b) a base member that supports the discharge members; and c) a and base swinging unit that swings the base member. By swinging the base member, it is possible to make the discharge members on the upstream side and the downstream side in the conveyance direction individually extend and retract between the conveying bodies.Type: GrantFiled: February 24, 2015Date of Patent: June 4, 2019Assignee: Itoh Denki Co., Ltd.Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Makoto Mitsuyoshi
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Patent number: 10301123Abstract: A transfer device having: a frame; a main conveyer unit having a main conveying passage disposed in a fixed planar area; and a sub conveyer unit having a sub conveying passage disposed in a planar area identical to the planar area of the main conveying passage and conveying an object in a direction crossing a conveying direction of the main conveying passage. A lifting and lowering unit lifts one of the conveying passages to a position above the other conveying passage. A regulating unit is provided for allowing linear upward and downward movement of at least one of the conveyer units. The regulating unit is a plate body or a linear body that bends and/or tilts. A bending direction or a tilting direction is aligned with an upward and downward movement direction of the main conveyer unit or the sub conveyer unit.Type: GrantFiled: July 13, 2018Date of Patent: May 28, 2019Assignee: Itoh Denki Co., Ltd.Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Jun Maekawa
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Publication number: 20190127153Abstract: The lifting and lowering apparatus includes a plurality of shelf members 6 and 7 and a lifting and lowering mechanism 8. The shelf members 6 and 7 respectively include placing tables A and B positioned on different heights, and each placing table is provided with a conveying unit 10. The shelf members 6 and 7 are lifted and lowered by the lifting and lowering mechanism 8, whereby the placing table A (B) of the shelf member 6 (7) which is one of the shelf members 6 and 7 is adjusted to be on the same height as the placing table B (A) of the other shelf member 7 (6), and with this state, an object is transferred from the placing table of one of the shelf members to the placing table of the other shelf member.Type: ApplicationFiled: September 28, 2018Publication date: May 2, 2019Inventors: Kazuo ITOH, Tatsuhiko NAKAMURA, Koji TAKAHASHI
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Patent number: D911289Type: GrantFiled: November 19, 2018Date of Patent: February 23, 2021Assignee: ITOH DENKI CO., LTD.Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Hideo Naiki