Patents by Inventor Koji Ozawa

Koji Ozawa 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).

  • Publication number: 20250085563
    Abstract: A technique that is suitable for use in a vehicle and capable of displaying an air floating video with high visibility is provided. The present invention contributes to “Goal 3: Ensure healthy lives and promote well-being for all at all ages” and “Goal 9: Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation” in the sustainable development goals. The air floating video display apparatus includes a housing 106 which is attachable at a position near a ceiling or a rearview mirror in the vehicle and stores a video display apparatus 1. A polarization separation member 101 and a retroreflector 2 on which a ?/4 plate 21 is provided, which are each arranged at a predetermined angle, are provided outside the housing 106.
    Type: Application
    Filed: July 6, 2022
    Publication date: March 13, 2025
    Inventors: Hiroaki TAKAHASHI, Koji HIRATA, Koji FUJITA, Yasuyuki OZAWA, Takahito KAWASAKI, Mutsuki UKAI
  • Patent number: 12227112
    Abstract: A moving body control device controls a moving body that moves by a rotation of a motor. The moving body control device includes: a pinching detecting unit that detects pinching of an object based on a change in a physical quantity indicating a rotation state of the motor. The pinching detecting unit is configured to: determine that the pinching has occurred in a case in which a first difference of the physical quantity in a first period is equal to or greater than a first threshold value and a tendency of a change in the physical quantity in the first period is a monotonous increase or a monotonous decrease; and lower a value of the first threshold value in a case in which the tendency of the monotonous increase or the monotonous decrease of the physical quantity continues for a period longer than the first period.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: February 18, 2025
    Assignee: NIDEC MOBILITY CORPORATION
    Inventor: Koji Ozawa
  • Patent number: 12203309
    Abstract: A moving body control device includes a pinching detecting unit. The pinching detecting unit is configured to calculate a first difference between physical quantities at a beginning and an end of a first period, calculate a plurality of second differences for respective second periods obtained by dividing the first period, each of the differences being a difference between physical quantities at a beginning and an end of the corresponding second period, and determine that pinching of an object has occurred in a case in which the first difference is equal to or greater than a first threshold value and a ratio of second differences equal to or greater than a second threshold value to the plurality of the second differences is equal to or greater than a third threshold value.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: January 21, 2025
    Assignee: NIDEC MOBILITY CORPORATION
    Inventors: Noriyoshi Machii, Koji Ozawa, Yota Katayama
  • Patent number: 12054075
    Abstract: A seat control device controls an electric seat in which a seat portion is moved by a predetermined distance by a first motor and a backrest is tilted by a predetermined angle by a second motor. The seat control device includes: a pinching detecting unit that detects an object being pinched between seats due to a movement of the seat portion based on a rotational state of the first motor and a predetermined threshold value. The threshold value is a threshold value that changes according to a tilt angle of the backrest such that pinching is easily detected as the tilt angle of the backrest increases.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: August 6, 2024
    Assignee: NIDEC MOBILITY CORPORATION
    Inventor: Koji Ozawa
  • Publication number: 20240209670
    Abstract: An opening/closing body control device is provided that can quickly detect pinching even when the opening/closing body is bent due to the pinching. An opening/closing body control device includes a motor drive unit that drives a motor for opening and closing the opening/closing body, and a control unit that controls an operation of the motor drive unit. The opening/closing control device includes a difference value calculator that calculates a current difference value that is a difference between a present value and a past value of a motor current, a differential value calculator that calculates a differential value of the current difference value, an adder that adds the current difference value and the differential value, and a pinching detection unit that judges whether or not pinching occurs at the opening/closing body based on a comparison result between the added value and a threshold.
    Type: Application
    Filed: December 25, 2023
    Publication date: June 27, 2024
    Applicant: NIDEC MOBILITY CORPORATION
    Inventors: Koji OZAWA, Hiroshi UENO
  • Publication number: 20230234477
    Abstract: A seat control device includes: a control unit configured to control movement of an electric seat; and a seating detection unit configured to detect whether an occupant is seated on another seat. When the electric seat moves in a direction of the other seat, in a case in which the occupant seated on the other seat is detected, the control unit moves the electric seat in the direction of the other seat in a first control mode including a process for suppressing the occupant from being pinched between the electric seat and the other seat. When the electric seat moves in the direction of the other seat, in a case in which no occupant seated on the other seat is detected, the control unit moves the electric seat in the direction of the other seat in a second control mode not including the process.
    Type: Application
    Filed: January 26, 2023
    Publication date: July 27, 2023
    Applicant: NIDEC MOBILITY CORPORATION
    Inventors: Koji OZAWA, Yota KATAYAMA, Hidekazu IMAI
  • Publication number: 20230219464
    Abstract: A seat control device is a control device of an electric seat. The seat control device includes: a control unit configured to control an operation of the seat; a pinching detection unit configured to detect pinching of an object occurring while the seat is moving; and a seating detection unit configured to detect whether or not an occupant is seated on the seat. In a case in which the pinching detection unit detects pinching and the seating detection unit does not detect seating of the occupant, the control unit moves the seat in a reverse direction by a predetermined amount. In a case in which the pinching detection unit detects pinching and the seating detection unit detects seating of the occupant, the control unit moves the seat in the reverse direction by an amount smaller than the predetermined amount.
    Type: Application
    Filed: January 11, 2023
    Publication date: July 13, 2023
    Applicant: NIDEC MOBILITY CORPORATION
    Inventors: Hidekazu IMAI, Koji OZAWA, Yota KATAYAMA
  • Publication number: 20230219463
    Abstract: A seat control device is configured to control an operation of an electric seat including a seat portion and a backrest portion. The seat control device includes: a first control unit configured to control an operation of the seat portion; a second control unit configured to control an operation of the backrest portion; and a pinching detection unit. In a case in which the pinching detection unit detects pinching during operations of both the seat portion and the backrest portion, the first control unit performs control to bring the seat portion into a pinching- free state in accordance with a direction of the operation of the seat portion before the pinching occurs, and the second control unit performs control to bring the backrest portion into a pinching-free state in accordance with a direction of the operation of the backrest portion before the pinching occurs.
    Type: Application
    Filed: January 11, 2023
    Publication date: July 13, 2023
    Applicant: NIDEC MOBILITY CORPORATION
    Inventors: Yota KATAYAMA, Koji OZAWA, Hidekazu IMAI
  • Publication number: 20220348117
    Abstract: A moving body control device controls a moving body that moves by a rotation of a motor. The moving body control device includes: a pinching detecting unit that detects pinching of an object based on a change in a physical quantity indicating a rotation state of the motor. The pinching detecting unit is configured to: determine that the pinching has occurred in a case in which a first difference of the physical quantity in a first period is equal to or greater than a first threshold value and a tendency of a change in the physical quantity in the first period is a monotonous increase or a monotonous decrease; and lower a value of the first threshold value in a case in which the tendency of the monotonous increase or the monotonous decrease of the physical quantity continues for a period longer than the first period.
    Type: Application
    Filed: April 28, 2022
    Publication date: November 3, 2022
    Applicant: NIDEC MOBILITY CORPORATION
    Inventor: Koji OZAWA
  • Publication number: 20220290480
    Abstract: A moving body control device includes a pinching detecting unit. The pinching detecting unit is configured to calculate a first difference between physical quantities at a beginning and an end of a first period, calculate a plurality of second differences for respective second periods obtained by dividing the first period, each of the differences being a difference between physical quantities at a beginning and an end of the corresponding second period, and determine that pinching of an object has occurred in a case in which the first difference is equal to or greater than a first threshold value and a ratio of second differences equal to or greater than a second threshold value to the plurality of the second differences is equal to or greater than a third threshold value.
    Type: Application
    Filed: March 11, 2022
    Publication date: September 15, 2022
    Applicant: NIDEC MOBILITY CORPORATION
    Inventors: Noriyoshi MACHII, Koji OZAWA, Yota KATAYAMA
  • Publication number: 20220281356
    Abstract: A seat control device controls an electric seat in which a seat portion is moved by a predetermined distance by a first motor and a backrest is tilted by a predetermined angle by a second motor. The seat control device includes: a pinching detecting unit that detects an object being pinched between seats due to a movement of the seat portion based on a rotational state of the first motor and a predetermined threshold value. The threshold value is a threshold value that changes according to a tilt angle of the backrest such that pinching is easily detected as the tilt angle of the backrest increases.
    Type: Application
    Filed: March 4, 2022
    Publication date: September 8, 2022
    Applicant: NIDEC MOBILITY CORPORATION
    Inventor: Koji OZAWA
  • Patent number: 10391629
    Abstract: An air pump apparatus is provided which uses an electric actuator that can electrically operate a pneumatic device such as a suction pad or air chuck. The air pump apparatus includes an air cylinder having a built-in piston, and an electric actuator configured to move the piston linearly and relatively to the air cylinder, using the electric motor as a drive source. Air under negative pressure and/or positive pressure generated by the electric actuator causing the piston of the air cylinder to move linearly is used to operate a pneumatic device.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: August 27, 2019
    Assignee: THK CO., LTD.
    Inventors: Koji Ozawa, Masaki Nagatsuka, Munehiro Iwata, Aiko Tagawa, Miki Tobita, Takashi Naito
  • Publication number: 20180185999
    Abstract: An air pump apparatus is provided which uses an electric actuator that can electrically operate a pneumatic device such as a suction pad or air chuck. The air pump apparatus includes an air cylinder having a built-in piston, and an electric actuator configured to move the piston linearly and relatively to the air cylinder, using the electric motor as a drive source. Air under negative pressure and/or positive pressure generated by the electric actuator causing the piston of the air cylinder to move linearly is used to operate a pneumatic device.
    Type: Application
    Filed: June 22, 2016
    Publication date: July 5, 2018
    Inventors: Koji OZAWA, Masaki NAGATSUKA, Munehiro IWATA, Aiko TAGAWA, Miki TOBITA, Takashi NAITO
  • Patent number: 9255434
    Abstract: A vehicle power window apparatus includes: a driver seat unit and a first non-driver seat switch which is a manual switch provided on a non-driver seat to open and close a non-driver seat window. The driver seat unit includes a switching circuit operated based on a predetermined operation of the first non-driver seat switch. When an extended operation of the first non-driver seat switch set by operating the first non-driver seat switch for a certain time period or more is detected, the control unit drives the switching circuit. After the extended operation of the first non-driver seat switch is released, the control unit fully opens or closes the non-driver seat window in an automatic operation mode by energizing the non-driver seat motor via the switching circuit and the first non-driver seat switch by the power supply.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: February 9, 2016
    Assignee: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.
    Inventor: Koji Ozawa
  • Patent number: 9070078
    Abstract: A controller transfers first data to a first control circuit in correspondence with a single data line at a rising edge of a clock pulse on a single clock line, and transfers second data to a second control circuit in correspondence with the single data line at a falling edge of the clock pulse.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: June 30, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Koji Ozawa
  • Publication number: 20150069945
    Abstract: A vehicle power window apparatus includes: a driver seat unit and a first non-driver seat switch which is a manual switch provided on a non-driver seat to open and close a non-driver seat window. The driver seat unit includes a switching circuit operated based on a predetermined operation of the first non-driver seat switch. When an extended operation of the first non-driver seat switch set by operating the first non-driver seat switch for a certain time period or more is detected, the control unit drives the switching circuit. After the extended operation of the first non-driver seat switch is released, the control unit fully opens or closes the non-driver seat window in an automatic operation mode by energizing the non-driver seat motor via the switching circuit and the first non-driver seat switch by the power supply.
    Type: Application
    Filed: September 9, 2014
    Publication date: March 12, 2015
    Applicant: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.
    Inventor: Koji Ozawa
  • Publication number: 20140268228
    Abstract: A controller transfers first data to a first control circuit in correspondence with a single data line at a rising edge of a clock pulse on a single clock line, and transfers second data to a second control circuit in correspondence with the single data line at a falling edge of the clock pulse.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 18, 2014
    Applicant: Seiko Epson Corporation
    Inventor: Koji OZAWA
  • Patent number: 8584857
    Abstract: Provided is a mount sheet (12) affixed to a PTP sheet (50) which accommodates a product, such as a tablet (53) and is formed by punching out a blank sheet. The mount sheet (12) includes a first surface (14) to be placed on a surface of the PTP sheet (50) from which the projecting portion 52a is projecting, multiple holes (16) formed in the first surface 14 and in which the projecting portion (52a) is placed, and a second surface (24) which continues from the first surface (14) via a folding line (26) and is to be folded on the opposite surface of the PTP sheet (50). The second surface (24) has a rupturable line (28) formed at a position to face the projecting portion 52a when folded and placed on the PTP sheet (50). An ejector tool (56) is provided which is affixed to the third surface 36 on a surface to be folded over the first surface (14) and has a pressing projection (60) projecting toward the PTP sheet (50).
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: November 19, 2013
    Assignee: Mitsubishi Shoji Packaging Corporation
    Inventors: Koji Ozawa, Yoshiei Harada, Koji Uno, Tetsuo Oida
  • Publication number: 20120091027
    Abstract: Provided is a mount sheet (12) affixed to a PTP sheet (50) which accommodates a product, such as a tablet (53) and is formed by punching out a blank sheet. The mount sheet (12) includes a first surface (14) to be placed on a surface of the PTP sheet (50) from which the projecting portion 52a is projecting, multiple holes (16) formed in the first surface 14 and in which the projecting portion (52a) is placed, and a second surface (24) which continues from the first surface (14) via a folding line (26) and is to be folded on the opposite surface of the PTP sheet (50). The second surface (24) has a rupturable line (28) formed at a position to face the projecting portion 52a when folded and placed on the PTP sheet (50). An ejector tool (56) is provided which is affixed to the third surface 36 on a surface to be folded over the first surface (14) and has a pressing projection (60) projecting toward the PTP sheet (50).
    Type: Application
    Filed: March 13, 2009
    Publication date: April 19, 2012
    Applicants: Sannova Co., Ltd, Asahi Printing Co., Ltd., Mitsubishi Shoji Packaging Corporation
    Inventors: Koji Ozawa, Yoshiei Harada, Koji Uno, Tetsuo Oida
  • Patent number: RE43600
    Abstract: In a data processing system in which main and sub disk storage devices are under the control of individual each disk control devices, the write processing time is reduced by selectively sending data according to the command-chaining time between main and sub disk control devices. A section for judging cable length and function of the sub disk control device 36 estimates command-chaining time between a pair of main and sub disk storage devices. The channel command analyzing section 31 estimates the number of records to be transferred and the length of a record using a LOCATE RECORD command. The command judgment section for the sub disk control device 32 optimizes the command-chain to be issued to the sub disk control device using the above-mentioned information. Then, the section for issuing command to the sub disk control device 35 issues the optimized command chain. Thus, a shorter transmission time is realized by either sending individual records or an entire track of data.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: August 21, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Koji Ozawa, Kazuhide Sano, Takeshi Koide, Katsunori Nakamura