Patents by Inventor Takafumi Maeda

Takafumi Maeda 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: 20240101021
    Abstract: A headlight determination apparatus includes a camera device, a target light recognition device, and a changing device. The camera device captures an image ahead of a vehicle at a predetermined frame rate. The target light recognition device recognizes target light from the image captured by the camera device. The changing device changes a wavelength of headlight of the vehicle by using a predetermined period slower than the predetermined frame rate. When the wavelength of the headlight is different from a wavelength of the target light and/or when a period of the wavelength of the headlight does not match a period of the wavelength of the target light, the target light recognition device recognizes that there is target light other than the headlight in front of the vehicle and controls light distribution of the headlight when there is target light other than the headlight in front of the vehicle.
    Type: Application
    Filed: July 24, 2023
    Publication date: March 28, 2024
    Applicant: Honda Motor Co., Ltd.
    Inventors: Fumihiro YASUFUKU, Kazuki KAWAMURA, Kazuki ODAGIRI, Keisuke MAEDA, Takashi MAI, Takafumi OTA
  • Publication number: 20240068470
    Abstract: An electric compressor includes: a compression part; an electric motor; an inverter; a housing including a plurality of housing forming members made of metal; a seal member that has an insulation property and is provided between the housing forming members adjacent to each other; and a potential equalization member that is made of metal and is in contact with both the adjacent housing forming members to equalize potentials of the adjacent housing forming members. The adjacent housing forming members include mating surfaces, respectively. An insertion hole is formed in one of the mating surfaces of the adjacent housing forming members, at a position in which the seal member is not provided. The potential equalization member includes an insertion portion inserted into the insertion hole, and a contact portion that is a plate portion extending in a gap between the mating surfaces and is in contact with both the mating surfaces.
    Type: Application
    Filed: July 25, 2023
    Publication date: February 29, 2024
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Ken NAMIKI, Takuro Yamashita, Takumi Maeda, Akinori Tanabe, Takafumi Konishi, Takahiro Suzuki, Yoshitaka Saito
  • Patent number: 10478887
    Abstract: Provided is an abnormality prediction system and an abnormality prediction method that are capable of predicting an abnormality occurring in a die that is used in a press machine.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: November 19, 2019
    Assignees: NIDEC-SHIMPO CORPORATION, NIDEC CORPORATION
    Inventors: Tetsuya Iwakuro, Takayuki Sawada, Masayuki Otani, Kazuyoshi Koga, Takafumi Maeda, Takeshi Honda, Nobuyuki Kita
  • Publication number: 20170278589
    Abstract: Provided are: a sintering binder including nanoparticles, a method for producing the sintering binder, and a method for bonding using the sintering binder. The sintering binder mainly includes cuprous oxide nanoparticles, combines particle stability with bondability, and less undergoes ion migration. A composite particle including metallic copper with the remainder being cuprous oxide and inevitable impurities is used for bonding typically of metals. The composite particle structurally includes metallic copper dispersed inside the particle and has an average particle size of 1000 nm or less.
    Type: Application
    Filed: November 18, 2015
    Publication date: September 28, 2017
    Applicant: HITACHI, LTD.
    Inventors: Yusuke YASUDA, Toshiaki MORITA, Yoshio KOBAYASHI, Takafumi MAEDA
  • Publication number: 20170036261
    Abstract: Provided is an abnormality prediction system and an abnormality prediction method that are capable of predicting an abnormality occurring in a die that is used in a press machine.
    Type: Application
    Filed: July 7, 2016
    Publication date: February 9, 2017
    Inventors: Tetsuya IWAKURO, Takayuki SAWADA, Masayuki OTANI, Kazuyoshi KOGA, Takafumi MAEDA, Takeshi HONDA, Nobuyuki KITA
  • Patent number: 7579712
    Abstract: A power system protection system prevents a voltage drop resulting from the reactive power characteristic of a power system. A main device for acquiring a system electric quantity of one or a plurality of upper substations detects a voltage drop resulting from the reactive power characteristic of the power system and transmits a detection signal of the voltage drop to a terminal device for acquiring a system electric quantity of one or a plurality of lower substations. Each terminal device sequentially sheds loads starting from those suffering more from the influence of the voltage drop resulting from the reactive power characteristic based on the load voltage and load current of a load bus.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: August 25, 2009
    Assignees: The Tokyo Electric Power Company, Kabushiki Kaisha Toshiba
    Inventors: Ken Yanagihashi, Mamoru Suzuki, Takafumi Maeda, Akira Ishibashi, Yasuchika Nishitani
  • Publication number: 20070198985
    Abstract: A power system protection system for preventing a voltage drop resulting from the reactive power characteristic of a power system. A main device for acquiring a system electric quantity of one or a plurality of upper substations detects a voltage drop resulting from the reactive power characteristic of the power system and transmits a detection signal of the voltage drop to a terminal device for acquiring a system electric quantity of one or a plurality of lower substations. Each terminal device sequentially sheds loads starting from those suffering more from the influence of the voltage drop resulting from the reactive power characteristic based on the load voltage and load current of a load bus.
    Type: Application
    Filed: March 16, 2004
    Publication date: August 23, 2007
    Inventors: Ken Yanagihashi, Mamoru Suzuki, Takafumi Maeda, Akira Ishibashi, Yasuchika Nishitani
  • Patent number: 5796630
    Abstract: A protective relay system detects a first electric variable and a second electric variable of a power system to discriminate in a time series whether or not a fault portion of a line or equipment included in the power system exists within a predetermined range, so as to determine whether protection of the power system should be carried out. The system includes a digital filter for outputting a first difference electric variable data indicative of a difference between at least two sample data of plural sampling data of the first electric variable and a difference between at least two sample data of plural sample data of the second electric variable at plural sampling times of the time series. The system also includes an addition filter for outputting first and second additive electric variable data indicative of orthogonal vector data with respect to the first and second difference electric variable data.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: August 18, 1998
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takafumi Maeda, Hiroshi Yamakawa, Fumio Andow, Mitsuru Yamaura, Yasuhiro Kurosawa
  • Patent number: 5503964
    Abstract: This resist removing method realizes efficient production of semiconductor devices and is configured to ensure both safe production and reliable semiconductor devices.The present invention can be applied to a resist removing method used in combination with a high dose of ions injection process of applying a high dose of impurity ions to a semiconductor wafer onto which surface a far-ultraviolet-ray hardened resist is partially applied. That is, the present invention comprises a resist hardening step of evenly hardening the resist by treating it in a far-ultraviolet-ray irradiation process and a baking process before a high dose of ions injection process. Additionally, it comprises a resist ashing step of removing the resist by forcing the resist to react under the pressure of 2 through 5 Torr to O.sub.2 plasma excited by a microwave after the high dose of ions injection process.
    Type: Grant
    Filed: December 28, 1993
    Date of Patent: April 2, 1996
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Tatsushi Nishina, Takafumi Maeda, Shin Hasebe
  • Patent number: 5170308
    Abstract: A method and system of transformer protection in which parallel admittance currents indicative of the apparent excitation state of a transformer to be protected are evaluated from the transformer terminal voltages and currents sampled at a proper interval, and discrimination between an internal defect and excitation inrush is made in response to a magnitude of the parallel admittance current, and a breaker opening command is issued in response to a judgement of internal defect. The method and system enables high-accuracy and high-sensitivity fault detection through a simple computation.
    Type: Grant
    Filed: January 18, 1990
    Date of Patent: December 8, 1992
    Assignees: Hitachi, Ltd., The Tokyo Electric Power Co., Inc.
    Inventors: Keizo Inagaki, Yoshihiro Sano, Yoshiaki Matsui, Takafumi Maeda
  • Patent number: 4546303
    Abstract: A static reactive-power compensating apparatus in which transients having a frequency below a predetermined frequency are not compensated for while all other variations are fully compensated for. A reset filter circuit is connected between the output of a rectifier circuit and a thyristor control circuit, the latter controlling the firing of thyristors which couple a reactive energy storage bank to the power system for compensating for voltage variations in the system. Preferably, the reset filter has a transfer characteristic of sT.sub.1 /(1+sT.sub.1).
    Type: Grant
    Filed: March 29, 1984
    Date of Patent: October 8, 1985
    Assignees: Tokyo Electric Power Co., Inc., Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takafumi Maeda, Setsurou Mine