Patents by Inventor Kazutaka Tamaki
Kazutaka Tamaki 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: 11929781Abstract: An objective is to provide a terminal device, a communication method, and a communication system in which the time taken by connection operations/authentication operations does not increase proportionally with the pattern length, even if the transmitting side and the receiving side are not synchronized. A terminal device, a communication method, and a communication system according to the present invention create n pieces of signal information (n-bit patterns) by sequentially shifting each bit of a single piece of received signal information (n-bit pattern) one bit at a time. Through the above, signal information time-shifted by one bit each is obtained. Thus, even if the transmitting side and the receiving side are not synchronized, one of the n pieces of signal information is a signal synchronized with the transmitting side. Thereafter, the signal synchronized with the transmitting side can be detected by a brute-force calculation with the patterns (ID information) in the list.Type: GrantFiled: January 23, 2020Date of Patent: March 12, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Ryota Shiina, Tomohiro Taniguchi, Kazutaka Hara, Shinya Tamaki, Tomoki Murakami, Toshiro Nakahira
-
Patent number: 10040302Abstract: A pinion gear is coaxially attached to vicinity of an end of an inner bar. The pinion gear is engaged with a rack gear and rotates in response to upward and downward movements of the tension bar. When the pinion rotates, the inner bar correspondingly rotates. The inner bar and an outer bar, which is a tension applying bar, are connected to each other so as to freely rotate. When the pinion rotates, the inner bar correspondingly rotates, while the outer bar remains unrotated.Type: GrantFiled: May 18, 2017Date of Patent: August 7, 2018Assignee: MIMAKI ENGINEERING CO., LTD.Inventors: Kohei Nakamura, Kazutaka Tamaki
-
Patent number: 9895907Abstract: An inkjet printer is an inkjet printer for performing printing on a print medium, and includes: a platen, having a groove formed at a position facing an inkjet head and configured to support a print medium; an air blowing unit, for sucking air from an inside of the groove; a lid, attachable to and detachable from the platen and configured to cover an opening of the groove and support the print medium by a surface of the lid when attached to the platen; a storage part, for storing the lid detached from the platen; and a link mechanism, for guiding movement of the lid between the platen and the storage part.Type: GrantFiled: April 9, 2015Date of Patent: February 20, 2018Assignee: MIMAKI ENGINEERING CO., LTD.Inventor: Kazutaka Tamaki
-
Publication number: 20170341436Abstract: A pinion gear is coaxially attached to vicinity of an end of an inner bar. The pinion gear is engaged with a rack gear and rotates in response to upward and downward movements of the tension bar. When the pinion rotates, the inner bar correspondingly rotates. The inner bar and an outer bar, which is a tension applying bar, are connected to each other so as to freely rotate. When the pinion rotates, the inner bar correspondingly rotates, while the outer bar remains unrotated.Type: ApplicationFiled: May 18, 2017Publication date: November 30, 2017Applicant: MIMAKI ENGINEERING CO., LTD.Inventors: Kohei NAKAMURA, Kazutaka TAMAKI
-
Publication number: 20170028745Abstract: An inkjet printer is an inkjet printer for performing printing on a print medium, and includes: a platen, having a groove formed at a position facing an inkjet head and configured to support a print medium; an air blowing unit, for sucking air from an inside of the groove; a lid, attachable to and detachable from the platen and configured to cover an opening of the groove and support the print medium by a surface of the lid when attached to the platen; a storage part, for storing the lid detached from the platen; and a link mechanism, for guiding movement of the lid between the platen and the storage part.Type: ApplicationFiled: April 9, 2015Publication date: February 2, 2017Applicant: MIMAKI ENGINEERING CO., LTD.Inventor: KAZUTAKA TAMAKI
-
Patent number: 9544024Abstract: A wireless power receiving device includes a voltage detection unit that detects an output voltage value of a rectifying unit, a power reduction unit that includes a switching element connected to a charging unit in parallel, and a control unit that controls operations of the switching element. In a case where the output voltage value detected by the voltage detection unit exceeds a first reference voltage value set in advance, the control unit controls and turns the switching element on by applying a voltage to the switching element, and controls the value of the voltage to be applied to the switching element so that the difference between the voltage value calculated on the basis of a current flowing in the switching element and a second reference voltage value set in advance decreases.Type: GrantFiled: June 23, 2014Date of Patent: January 10, 2017Assignee: TDK CORPORATIONInventors: Kazutaka Tamaki, Masahide Ohnishi, Tadao Senriuchi
-
Power transmission device and wireless power transmission system using the power transmission device
Patent number: 9466987Abstract: A power transmission device includes a power conversion circuit that outputs an alternating voltage in order to generate an alternating magnetic field and a control circuit used to control a frequency of the alternating voltage. The control circuit sets, in a predetermined frequency range, the frequency of the alternating voltage to a higher one of a first frequency at which transmission efficiency is highest and a second frequency at which a voltage generated in the power receiving device is highest, and performs power transmission.Type: GrantFiled: December 13, 2013Date of Patent: October 11, 2016Assignee: TDK CORPORATIONInventors: Kazutaka Tamaki, Hitoyoshi Kurata -
Publication number: 20150130123Abstract: Provided are a medium-machining device and medium-machining method capable of improving conveying precision when a medium to be machined is conveyed and thereby machining the medium with high precision. As a solution, the medium-machining device 1 according to the present invention includes a medium machining means 50 (60) for machining a medium M while scanning the top of the medium M, a platen 10 for supporting the medium M during the machining, two medium conveying rollers 15 and 16 provided upstream and downstream in a conveying direction of the medium with respect to the medium machining means 50 (60), and a manual distribution tray 30 having a medium supporting surface 30a arranged in the same surface as a medium supporting surface 10a of the platen 10.Type: ApplicationFiled: July 12, 2013Publication date: May 14, 2015Applicant: MIMAKI ENGINEERING CO., LTD.Inventor: Kazutaka Tamaki
-
Publication number: 20150001954Abstract: A wireless power receiving device includes a voltage detection unit that detects an output voltage value of a rectifying unit, a power reduction unit that includes a switching element connected to a charging unit in parallel, and a control unit that controls operations of the switching element. In a case where the output voltage value detected by the voltage detection unit exceeds a first reference voltage value set in advance, the control unit controls and turns the switching element on by applying a voltage to the switching element, and controls the value of the voltage to be applied to the switching element so that the difference between the voltage value calculated on the basis of a current flowing in the switching element and a second reference voltage value set in advance decreases.Type: ApplicationFiled: June 23, 2014Publication date: January 1, 2015Inventors: Kazutaka TAMAKI, Masahide OHNISHI, Tadao SENRIUCHI
-
POWER TRANSMISSION DEVICE AND WIRELESS POWER TRANSMISSION SYSTEM USING THE POWER TRANSMISSION DEVICE
Publication number: 20140167523Abstract: A power transmission device includes a power conversion circuit that outputs an alternating voltage in order to generate an alternating magnetic field and a control circuit used to control a frequency of the alternating voltage. The control circuit sets, in a predetermined frequency range, the frequency of the alternating voltage to a higher one of a first frequency at which transmission efficiency is highest and a second frequency at which a voltage generated in the power receiving device is highest, and performs power transmission.Type: ApplicationFiled: December 13, 2013Publication date: June 19, 2014Applicant: TDK CORPORATIONInventors: Kazutaka TAMAKI, Hitoyoshi KURATA -
Patent number: 8506060Abstract: An ink supply device for an inkjet printer includes a sub-tank and a main tank. The sub-tank has an ink chamber to store liquid ink and is connected to a print head configured to eject the liquid ink via a head-side supply passage. The sub-tank has a plurality of supply holes which connect the ink chamber and the head-side supply passage. At least two of the plurality of supply holes have their openings on the ink chamber side formed at different heights. The main tank is connected to the sub-tank and contains the liquid ink to be supplied to the ink chamber.Type: GrantFiled: June 23, 2010Date of Patent: August 13, 2013Assignee: Mimaki Engineering Co., Ltd.Inventor: Kazutaka Tamaki
-
Patent number: 8242630Abstract: A multiple power supply integration apparatus measures electric power and stability of power supplies, outputs thereof having irregularity. Based on measured values of the electric power and the stability, certainty of entire supply of the electric power when a use allocation rate of the power supplies is changed is indexed as an evaluation value. The multiple power supply integration apparatus adjusts each converter according to a use allocation rate corresponding to a largest evaluation value, thereby adjusting a magnitude of the electric power supplied from each power supply to a common power line.Type: GrantFiled: March 12, 2010Date of Patent: August 14, 2012Assignee: TDK CorporationInventors: Kazutaka Tamaki, Ichiro Takayama
-
Patent number: 8142003Abstract: An inkjet printer system includes a print head and a sub tank. The print head is configured to eject ink. The sub tank is provided above the print head and connected to the print head via a head-side supply passage. The sub tank has a first supplying hole and a second supplying hole which are connected to the head-side supply passage. A position of the first supplying hole is higher than a position of the second supplying hole.Type: GrantFiled: April 6, 2009Date of Patent: March 27, 2012Assignee: Mimaki Engineering Co., Ltd.Inventor: Kazutaka Tamaki
-
Publication number: 20120026254Abstract: An ink supply device for an inkjet printer is provided with a backflow shutoff mechanism (200). The backflow shutoff mechanism (200) is disposed on a line (177) as an air passage which connects a pressure control means for adjusting the inner pressure of a sub tank (120) and the sub tank (120) to allow the pressure control means to adjust the inner pressure of the sub tank (120), and closes the line (177) to shut off inflow of ink toward the pressure control means side when the inner pressure of the sub tank (120) is reduced to a negative pressure by said pressure control means through the line (177) and the ink stored in the sub tank (120) flows out into the line (177).Type: ApplicationFiled: September 28, 2009Publication date: February 2, 2012Applicant: MIMAKI ENGINEERING CO., LTD.Inventor: Kazutaka Tamaki
-
Patent number: 8104855Abstract: An inkjet printer system includes a print head, a sub tank, and a sensor. The print head is configured to eject ink. The sub tank includes an ink supply chamber and an ink detection chamber. The ink supply chamber has an ink inlet hole and an ink outlet hole connected to the print head. Ink is supplied to the sub tank through the ink inlet hole. Ink is supplied to the print head from the sub tank through the ink outlet hole. The ink detection chamber communicates with the ink supply chamber. The sensor is configured to detect an amount of ink contained in the sub tank and includes a float member provided in the ink detection chamber to float in the ink.Type: GrantFiled: April 6, 2009Date of Patent: January 31, 2012Assignee: Mimaki Engineering Co., Ltd.Inventors: Kazutaka Tamaki, Masaki Kodaira, Yukihiro Uchiyama, Atsushi Tsuchiya
-
Patent number: 8047640Abstract: An inkjet printer system includes a print head, a sub tank, a pressure controller, and a check valve. The print head is configured to eject ink. The sub tank is connected to the print head and has a pressure control hole. The pressure controller is connected to the pressure control hole to control an inner pressure of the sub tank. The check valve is provided at the pressure control hole to prevent ink in the sub tank from flowing into the pressure control hole from the sub tank.Type: GrantFiled: April 6, 2009Date of Patent: November 1, 2011Assignee: Mimaki Engineering Co., Ltd.Inventors: Yukihiro Uchiyama, Kazutaka Tamaki
-
Patent number: 8043014Abstract: A printer includes a supporting device, a cantilevered first guide arm, a second guide arm, and a printer head. The supporting device is configured to support a material to be printed. The cantilevered first guide arm has a longitudinal direction. The second guide arm is connected to the first guide arm to be movable along the longitudinal direction of the first guide. The second guide arm extends along a lateral direction substantially perpendicular to the longitudinal direction. The printer head is configured to print on the material supported by the supporting device and provided on the second guide arm to be movable along the lateral direction.Type: GrantFiled: April 2, 2007Date of Patent: October 25, 2011Assignee: Mimaki Engineering Co., Ltd.Inventors: Kazutaka Tamaki, Naoto Musha
-
Publication number: 20100295905Abstract: An ink supply device for an inkjet printer includes a sub-tank and a main tank. The sub-tank has an ink chamber to store liquid ink and is connected to a print head configured to eject the liquid ink via a head-side supply passage. The sub-tank has a plurality of supply holes which connect the ink chamber and the head-side supply passage. At least two of the plurality of supply holes have their openings on the ink chamber side formed at different heights. The main tank is connected to the sub-tank and contains the liquid ink to be supplied to the ink chamber.Type: ApplicationFiled: June 23, 2010Publication date: November 25, 2010Applicant: MIMAKI ENGINEERING CO., LTD.Inventor: Kazutaka TAMAKI
-
Publication number: 20100231050Abstract: A multiple power supply integration apparatus measures electric power and stability of power supplies, outputs thereof having irregularity. Based on measured values of the electric power and the stability, certainty of entire supply of the electric power when a use allocation rate of the power supplies is changed is indexed as an evaluation value. The multiple power supply integration apparatus adjusts each converter according to a use allocation rate corresponding to a largest evaluation value, thereby adjusting a magnitude of the electric power supplied from each power supply to a common power line.Type: ApplicationFiled: March 12, 2010Publication date: September 16, 2010Inventors: Kazutaka TAMAKI, Ichiro Takayama
-
Patent number: D618723Type: GrantFiled: September 3, 2008Date of Patent: June 29, 2010Assignee: Mimaki Engineering Co., Ltd.Inventor: Kazutaka Tamaki