Patents by Inventor Tetsuya Ido
Tetsuya Ido 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: 20250237798Abstract: An optical element includes a plurality of pillar-shaped bodies that are formed of a material with a predetermined dielectric constant on a flat surface of a transparent substrate through which light is transmitted and that are arranged in a matrix shape. Each pillar-shaped body is formed to perform phase adjustment on output light which is output by transmission of input light, on the basis of the dielectric constant, a sectional shape in a direction parallel to the flat surface, and a length in a normal direction with respect to the flat surface, to adjust deflection characteristics with respect to the normal direction, lens characteristics of condensing light with respect to the normal direction, and polarized wave characteristics with respect to the normal direction, and to output the output light having a desired polarized light characteristics.Type: ApplicationFiled: March 23, 2023Publication date: July 24, 2025Inventors: Kentaro Iwami, Motoaki Hara, Yuichiro Yano, Tetsuya Ido
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Patent number: 12289390Abstract: A node includes: a communication module that recovers a clock signal of another node; a high-precision clock module; a first phase/frequency comparison module; a time estimation section that estimates time information of each node; a counter value correction section that corrects a counter value; a fractional PLL; a second phase/frequency comparison module; and a division ratio correction section that corrects a division ratio of the fractional PLL.Type: GrantFiled: February 25, 2022Date of Patent: April 29, 2025Assignee: National Institute of Information and Communications TechnologyInventors: Yuichiro Yano, Tetsuya Ido, Motoaki Hara
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Publication number: 20240195601Abstract: A node includes: a communication module that recovers a clock signal of another node; a high-precision clock module; a first phase/frequency comparison module; a time estimation section that estimates time information of each node; a counter value correction section that corrects a counter value; a fractional PLL; a second phase/frequency comparison module; and a division ratio correction section that corrects a division ratio of the fractional PLL.Type: ApplicationFiled: February 25, 2022Publication date: June 13, 2024Applicant: National Institute of Information and Communications TechnologyInventors: Yuichiro YANO, Tetsuya IDO, Motoaki HARA
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Publication number: 20240150229Abstract: The problem of the present invention is to provide a substrate with high versatility, a method for producing the substrate, and a method for producing a unit cell using the substrate. The problem is solved by providing a substrate comprising a plurality of alkali metal azide spots on a substantially flat surface.Type: ApplicationFiled: January 27, 2022Publication date: May 9, 2024Applicants: National Institute of Information and Communications Technology, TOYOBO MC CorporationInventors: Motoaki HARA, Yuichiro YANO, Tetsuya IDO, Hikaru TANAKA, Kazutake HAGIYA, Yasuhiro SATO
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Publication number: 20230319746Abstract: A time synchronization network able to efficiently maintain time synchronization according to standard time is described. A communication device includes a time information output unit and a time synchronization unit. The time information output unit is configured to output time information with an internal clock that is stable. The time synchronization unit is configured to correct the time information of the time information output unit based on information on a time difference between the communication device and another communication device adjacent to the communication device.Type: ApplicationFiled: June 29, 2021Publication date: October 5, 2023Applicant: National Institute of Information and Communications TechnologyInventors: Motoaki HARA, Yuichiro YANO, Tetsuya IDO
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Patent number: 11750204Abstract: This atomic resonator for causing a resonance frequency by CPT resonance includes: a gas cell having alkali metal atoms enclosed; a photodetector configured to detect light having passed through the gas cell and convert the light to an electric signal; a high-frequency oscillator configured to receive the electric signal and output the signal after a frequency thereof is divided by two; and a laser light source configured to modulate and introduce, into the gas cell, light based on the signal output from the high-frequency oscillator. The high-frequency oscillator has an injection-locked frequency divider circuit including an acoustic resonator as an oscillation element.Type: GrantFiled: March 11, 2022Date of Patent: September 5, 2023Assignees: National Institute of Information and Communications Technology, Tokyo Institute of TechnologyInventors: Motoaki Hara, Yuichiro Yano, Masatoshi Kajita, Tetsuya Ido, Hiroyuki Ito
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Publication number: 20230012453Abstract: Provided is a variable-wavelength surface emission laser having a wide wavelength variation range. A partial region of a thin-plate substrate (22) and a movable mirror (20), the partial region being positioned between an air gap (G1) and a movable gap (G2), can move toward the air gap (G1) side or the movable gap (G2) side.Type: ApplicationFiled: December 8, 2020Publication date: January 12, 2023Applicant: National Institute of Information and Communications TechnologyInventors: Motoaki HARA, Yuichiro YANO, Masatoshi KAJITA, Tetsuya IDO, Satoshi SHINADA, Takahito ONO, Masaya TODA
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Publication number: 20220200612Abstract: This atomic resonator for causing a resonance frequency by CPT resonance includes: a gas cell having alkali metal atoms enclosed; a photodetector configured to detect light having passed through the gas cell and convert the light to an electric signal; a high-frequency oscillator configured to receive the electric signal and output the signal after a frequency thereof is divided by two; and a laser light source configured to modulate and introduce, into the gas cell, light based on the signal output from the high-frequency oscillator. The high-frequency oscillator has an injection-locked frequency divider circuit including an acoustic resonator as an oscillation element.Type: ApplicationFiled: March 11, 2022Publication date: June 23, 2022Applicants: National Institute of Information and Communications Technology, Tokyo Institute of TechnologyInventors: Motoaki HARA, Yuichiro YANO, Masatoshi KAJITA, Tetsuya IDO, Hiroyuki ITO
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Patent number: 8562548Abstract: The present invention provides a rehabilitation device using a walking assistance device (1) having an actuator which generates and provides torque to a lower limb joint of a wearer wearing the walking assistance device (1), comprising a floor reaction force pattern storing unit (330) configured to store a reference floor reaction force pattern; a control target floor reaction force setting unit (340) for determining a control target floor reaction force based on the floor reaction force pattern stored in the floor reaction force pattern storing unit (330); a target torque calculating unit (350) for calculating a target torque of the actuator to achieve the control target floor reaction force determined by the control target floor reaction force setting unit (340); and an actuator output controller (150) for controlling output of the actuator such that the actuator generates a torque matching the target torque calculated by the target torque calculating unit (350); wherein the floor reaction force that the weType: GrantFiled: September 18, 2009Date of Patent: October 22, 2013Assignee: Honda Motor Co., Ltd.Inventors: Kei Shimada, Ken Yasuhara, Tetsuya Ido, Shuichi Wakita
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Patent number: 8562691Abstract: A training device capable of converting kinetic energy of an agent into electric energy while applying to the agent a resistance force of a variation behavior appropriate to a motion behavior of the agent. According to the training device, a strength and a direction of a resistance force applied to the agent can be varied via a regenerative braking on a motor according to at least one of a variation behavior of a relative posture between an upper body and a leg of the agent and a temporal variation behavior of the relative posture therebetween.Type: GrantFiled: August 9, 2010Date of Patent: October 22, 2013Assignee: Honda Motor Co., Ltd.Inventors: Yosuke Endo, Tetsuya Ido, Ritsuo Hara, Keishiro Kikuchi
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Patent number: 8251930Abstract: A walking assistance device (1) has a body-mounted assembly (2) installed on the waist of a user (A), foot-mounted assemblies (3L, 3R) installed on feet, and leg links (4L, 4R) which connect the foot-mounted assemblies (3L, 3R) to the body-mounted assembly (2). The foot-mounted assemblies (3L, 3R) are provided with floor reaction force sensors (13L, 13R). Results obtained by multiplying the absolute values of floor reaction force vectors (three-dimensional vectors) detected by the floor reaction force sensors (13L, 13R) by a predetermined ratio are defined as target values of the magnitudes of the supporting forces transmitted to the leg links (4L, 4R) from the foot-mounted assemblies (3L, 3R). Actuators (20L, 20R) of the leg links (4L, 4R) are controlled such that the supporting forces having the magnitudes of the target values act on the leg links (4L, 4R) from the foot-mounted assemblies (3L, 3R) through the intermediary of joints (19L, 19R).Type: GrantFiled: June 5, 2006Date of Patent: August 28, 2012Assignee: Honda Motor Co., Ltd.Inventor: Tetsuya Ido
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Publication number: 20120095373Abstract: A walking assistance device applies a walking assistance force from an electric motor to a femoral part of a user. The device comprises a communication unit and an operation switch enabling unit. The operation switch enabling unit disables an operation switch of the walking assistance device until the communication unit receives a signal from an external device even when a power switch is turned on, and enables the operation switch when the communication unit has received a signal from the external device while the power switch is turned on. Thus, unauthorized use of the walking assistance device is prevented, and operation of the walking assistance device is supervised with control parameters suited for the particular user. Also, the walking assistance device can be shared by a plurality of users, and each user can use the walking assistance device with pre-selected control parameters that optimally suit the particular user.Type: ApplicationFiled: September 22, 2011Publication date: April 19, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: Takashi Hirata, Tetsuya Ido, Hideo Shimizu
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Publication number: 20110033835Abstract: A training device capable of converting kinetic energy of an agent into electric energy while applying to the agent a resistance force of a variation behavior appropriate to a motion behavior of the agent. According to the training device, a strength and a direction of a resistance force applied to the agent can be varied via a regenerative braking on a motor according to at least one of a variation behavior of a relative posture between an upper body and a leg of the agent and a temporal variation behavior of the relative posture therebetween.Type: ApplicationFiled: August 9, 2010Publication date: February 10, 2011Applicant: HONDA MOTOR CO., LTD.Inventors: Yosuke Endo, Tetsuya Ido, Ritsuo Hara, Keishiro Kikuchi
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Patent number: 7883483Abstract: A control device and a control program of a walking assisting device, wherein a desired assist ratio, which is a desired value of the ratio of a force to be supplied by a walking assisting device (1) in a total tread force of a user (A) relative to the total tread forces is set, the shares of a lifting force to be applied to the user (A) from a seating part (2) which are to be borne by the leg links (3L, 3R) are determined from the desire assist ratio and the tread forces of the legs of the user (A) measured on the basis of outputs of force sensors (38, 38, 39, 39), and actuators (27, 27) of the leg links (3L, 3R) are controlled such that the determined shares of the lifting force are generated from the leg links (3L, 3R).Type: GrantFiled: May 29, 2006Date of Patent: February 8, 2011Assignee: Honda Motor Co., Ltd.Inventors: Tetsuya Ido, Yasushi Ikeuchi
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Patent number: 7771373Abstract: A control device and a control program of a walking assisting device, wherein a desired assist ratio, which is a desired value of the ratio of a force to be supplied by a walking assisting device in a total tread force of a user relative to the total tread forces is set, the shares of a lifting force to be applied to the user from a seating part which are to be borne by the leg links are determined from the desire assist ratio and the tread forces of the legs of the user measured on the basis of outputs of force sensors, and actuators of the leg links are controlled such that the determined shares of the lifting force are generated from the leg links. Thus, a force required for the user to support himself/herself by his/her legs on a floor can be reduced while reducing the number of parts to be attached to each leg of the user, and an assisting force for achieving such reductions can be properly shared between the leg links corresponding to the legs of the user.Type: GrantFiled: February 25, 2009Date of Patent: August 10, 2010Assignee: Honda Motor Co., Ltd.Inventors: Tetsuya Ido, Yasushi Ikeuchi
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Publication number: 20100076360Abstract: The present invention provides a rehabilitation device using a walking assistance device (1) having an actuator which generates and provides torque to a lower limb joint of a wearer wearing the walking assistance device (1), comprising a floor reaction force pattern storing unit (330) configured to store a reference floor reaction force pattern; a control target floor reaction force setting unit (340) for determining a control target floor reaction force based on the floor reaction force pattern stored in the floor reaction force pattern storing unit (330); a target torque calculating unit (350) for calculating a target torque of the actuator to achieve the control target floor reaction force determined by the control target floor reaction force setting unit (340); and an actuator output controller (150) for controlling output of the actuator such that the actuator generates a torque matching the target torque calculated by the target torque calculating unit (350); wherein the floor reaction force that the weType: ApplicationFiled: September 18, 2009Publication date: March 25, 2010Applicant: Honda Motor Co., Ltd.Inventors: Kei Shimada, Ken Yasuhara, Tetsuya Ido, Shuichi Wakita
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Publication number: 20090170662Abstract: A control device and a control program of a walking assisting device, wherein a desired assist ratio, which is a desired value of the ratio of a force to be supplied by a walking assisting device in a total tread force of a user relative to the total tread forces is set, the shares of a lifting force to be applied to the user from a seating part which are to be borne by the leg links are determined from the desire assist ratio and the tread forces of the legs of the user measured on the basis of outputs of force sensors, and actuators of the leg links are controlled such that the determined shares of the lifting force are generated from the leg links. Thus, a force required for the user to support himself/herself by his/her legs on a floor can be reduced while reducing the number of parts to be attached to each leg of the user, and an assisting force for achieving such reductions can be properly shared between the leg links corresponding to the legs of the user.Type: ApplicationFiled: February 25, 2009Publication date: July 2, 2009Applicant: HONDA MOTOR CO., LTD.Inventors: Tetsuya Ido, Yasushi Ikeuchi
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Publication number: 20090036815Abstract: A walking assistance device (1) has a body-mounted assembly (2) installed on the waist of a user (A), foot-mounted assemblies (3L, 3R) installed on feet, and leg links (4L, 4R) which connect the foot-mounted assemblies (3L, 3R) to the body-mounted assembly (2). The foot-mounted assemblies (3L, 3R) are provided with floor reaction force sensors (13L, 13R). Results obtained by multiplying the absolute values of floor reaction force vectors (three-dimensional vectors) detected by the floor reaction force sensors (13L, 13R) by a predetermined ratio are defined as target values of the magnitudes of the supporting forces transmitted to the leg links (4L, 4R) from the foot-mounted assemblies (3L, 3R). Actuators (20L, 20R) of the leg links (4L, 4R) are controlled such that the supporting forces having the magnitudes of the target values act on the leg links (4L, 4R) from the foot-mounted assemblies (3L, 3R) through the intermediary of joints (19L, 19R).Type: ApplicationFiled: June 5, 2006Publication date: February 5, 2009Applicant: HONDA MOTOR CO., LTD.Inventor: Tetsuya Ido
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Publication number: 20080312049Abstract: A control device and a control program of a walking assisting device, wherein a desired assist ratio, which is a desired value of the ratio of a force to be supplied by a walking assisting device (1) in a total tread force of a user (A) relative to the total tread forces is set, the shares of a lifting force to be applied to the user (A) from a seating part (2) which are to be borne by the leg links (3L, 3R) are determined from the desire assist ratio and the tread forces of the legs of the user (A) measured on the basis of outputs of force sensors (38, 38, 39, 39), and actuators (27, 27) of the leg links (3L, 3R) are controlled such that the determined shares of the lifting force are generated from the leg links (3L, 3R).Type: ApplicationFiled: May 29, 2006Publication date: December 18, 2008Applicant: HONDA MOTOR CO., LTD.Inventors: Tetsuya Ido, Yasushi Ikeuchi
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Patent number: 6980919Abstract: A device and a method that permit easy and accurate determination of a walking condition regardless of differences in foot landing points on soles or lengths of legs of a walker are provided. According to this device, a measuring device measures a parameter indicating a displacement speed or a displacement acceleration of a bottom end portion of one leg with respect to a bottom end portion of the other leg of the walker. A first storage device stores patterns of plots corresponding to parameters and walking conditions of the walker. A generating device generates plots defined in the determination space by parameters measured by the measuring device. A determining device determines walking conditions of the walker on the basis of the patterns of the plots stored and retained in conjunction with the walking conditions by the first storage device and the patterns of the plots generated by the generating device.Type: GrantFiled: August 23, 2002Date of Patent: December 27, 2005Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Tetsuya Ido