Patents Assigned to Seiki Co., Ltd.
  • Patent number: 11971253
    Abstract: The present invention provides a magnet unit and a position detection device that are excellent in thermal shock resistance without the risk of being damaged due to a temperature change and that are capable of detecting a position with high accuracy. A magnet unit comprises: a magnet that moves in a linear or rotating manner relative to a magnetic detection element (magnetic detection section) for detecting a change in a magnetic field; and a magnet holding member that moves in a linear or rotating manner while being fixed to an object L to be detected and that holds the magnet attached thereto. The magnet holding member has a fixed part that is fixed to the object L to be detected and a magnet housing part to which the magnet is attached. The magnet housing part has openings where opposite end surface portions of the magnet are exposed.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: April 30, 2024
    Assignee: Nippon Seiki Co., Ltd.
    Inventors: Masataka Tanahashi, Yuki Suyama, Yuki Kikui
  • Patent number: 11960080
    Abstract: Provided is a head-up display device capable of reducing the divergence angle of display light which has passed a cross point. A head-up display device comprises: a light source that emits light beams; a liquid crystal panel that emits display light beams upon reception of the light beams from the light source; a first mirror that reflects the display light beams from the liquid crystal panel and causes the reflected display light beams to cross at a cross point in a crossing direction; a second mirror that reflects the display light beams reflected on the first mirror and passed through the cross point; and a second lenticular lens that converges the light beams from the light source and causes the display light beams to reach the first mirror in the converged state.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: April 16, 2024
    Assignee: Nippon Seiki Co., Ltd.
    Inventors: Takaharu Iwaya, Chiaki Shibuya
  • Publication number: 20240106209
    Abstract: [Problem] To provide a wire gripper of excellent operability. [Solution] According to one aspect of the present invention, a wire gripper is provided. This wire gripper comprises: a wire gripping part; a first operation part; and a second operation part. The wire gripping part is configured to be able to hold a linear body by being closed. When the first operation part is pressed, the state transitions to a state where the first operation part and the second operation part are engageable with each other. In the engageable state, the wire gripping part is opened.
    Type: Application
    Filed: January 21, 2022
    Publication date: March 28, 2024
    Applicant: NAGAKI SEIKI CO., LTD.
    Inventors: Tomohiro ORIKAWA, Shinya IWATA
  • Patent number: 11925130
    Abstract: A piercing tool can be used by optionally replacing a distal end portion, which is to be first brought into abutment against an object to be pierced such as the ground, and can facilitate a replacement operation of the distal end portion. A piercing tool includes: a distal end portion, which has a cylindrical shape, and is to be first brought into abutment against an object; and a main body portion, which has a cylindrical shape at the main body portion, and has one end portion to which the distal end portion is mounted, wherein the distal end portion is removably mounted to the one end portion of the main body portion. The distal end portion has an inner peripheral surface having a female thread formed at an end portion of the distal end portion on a side to be mounted to the main body portion.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: March 12, 2024
    Assignee: SAKAMOTO SEIKI CO., LTD.
    Inventors: Koichi Sakamoto, Tomoyuki Sakamoto
  • Patent number: 11920911
    Abstract: A dart may comprise—in order from the front thereof—a point, a barrel, a shaft, and a flight. The flight may comprise a plurality of fins. The fins may comprise mesh-like reinforcing ribs that protrude from surfaces thereof. The fins may further comprise, at peripheries thereof, fin rims formed so as to be of increased thickness. Reinforcing ribs may be formed over the approximate entireties of the fins. The shaft may comprise an insertion portion at the back end thereof. The flight may comprise a central axial hole having an opening at the front end thereof. The shaft may be removably installable with respect to the flight by virtue of a cap-like arrangement by which the insertion portion is inserted within, and is coupled and secured to, the central axial hole. The central axial hole may be formed from the front end of the flight to the back end thereof.
    Type: Grant
    Filed: May 15, 2022
    Date of Patent: March 5, 2024
    Assignee: Cosmo Seiki Co., Ltd.
    Inventors: Hiroaki Matsubara, Masayuki Matsubara
  • Patent number: 11879757
    Abstract: This invention is concerning easily installing an encoder main unit to a disk unit disposed on a shaft, without contacting a light-receiving element and an LED. An encoder installing structure and method using a spigot unit according to this invention are a configuration and method including: a shaft end which is a spigot inserting portion of a motor shaft of a motor; a disk unit which is fitted in an outer periphery of the shaft end so as to be fitted as a first spigot fitting portion and includes a disk; a screw hole which is formed at a shaft center of the shaft end along a shaft direction of the motor shaft.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: January 23, 2024
    Assignee: TAMAGAWA SEIKI CO., LTD.
    Inventor: Tomoe Kinoshita
  • Patent number: 11816862
    Abstract: A head-up display device as a vehicle display device projects display light onto a front windshield of a vehicle, displays a virtual image by reflected display light, on the front windshield, so as to be superimposed on a real scene transparent through the front windshield, captures an image of a driver of the vehicle by projecting infrared light onto the driver, and detects the positions of the eyes of the driver based on the captured image. A control unit detects the position of a feature point of the face of the driver in the captured image and stores a positional relationship with the detected positions of the eyes, and, when it is difficult to detect the positions of the eyes in die captured image, estimates a viewpoint position of the driver based on the position of the feature point detected at this time and the positional relationship stored beforehand.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: November 14, 2023
    Assignee: NIPPON SEIKI CO., LTD.
    Inventor: Makoto Hada
  • Publication number: 20230302544
    Abstract: A cutting tool is rotatable about an axis line, and includes a main body portion, a cutting insert, and a plurality of anti-vibration members. The main body portion has an inner circumferential surface and an outer circumferential surface opposite to the inner circumferential surface. The cutting insert is attached to at least one of the inner circumferential surface and the outer circumferential surface. Each of the plurality of anti-vibration members is provided at the main body portion. Each of the plurality of anti-vibration members includes a weight member composed of a material having a specific gravity larger than a specific gravity of a material of the main body portion.
    Type: Application
    Filed: July 8, 2021
    Publication date: September 28, 2023
    Applicants: Sumitomo Electric Hardmetal Corp., Komatsu NTC Ltd., Big Daishowa Seiki Co., Ltd.
    Inventors: Hirochika FUKUDA, Takuya NISHIMURA, Masanori KAKUI, Manabu TSUJINO, Tatsuya OGATA
  • Publication number: 20230288440
    Abstract: It is an object to provide a cover slip sticking device capable of improving matching between types of clearing agents and cover slips. As a means for solving the problem, a cover slip sticking device includes a dipping bath (21) in which slide glasses (22) on which specimens are attached are housed to be dipped in a clearing agent, a holder (11) having a cover slip (10) and cover slip information (14), a mounting part (C) on which the holder is mounted, a sticking part (B) sticking the cover slip (10) taken out from the holder (11) on the slide glass (22), a reading unit (62) reading the cover slip information (14), a storage unit (65) storing a type of the clearing agent and matching information between types of clearing agents and types of cover slips and a determination unit (66) comparing the cover slip information (14) read by the reading unit (62) and the type of the clearing agent stored in the storage unit (65) with the matching information to determine whether the types match with each other or not.
    Type: Application
    Filed: May 22, 2023
    Publication date: September 14, 2023
    Applicants: SAKURA SEIKI CO., LTD., SAKURA FINETEK JAPAN CO., LTD.
    Inventors: Tomonori KAWAI, Yamato MIYAIRI
  • Publication number: 20230291271
    Abstract: A rotating electric machine cooling frame according to an embodiment includes: a cylindrical frame main body; one cooling-medium inlet provided on the frame main body; one cooling-medium outlet provided on the frame main body; and a plurality of flow-passage lines provided in the frame main body, including a cooling-medium flow passage in communication with the cooling-medium inlet and the cooling-medium outlet.
    Type: Application
    Filed: June 14, 2021
    Publication date: September 14, 2023
    Applicants: Toshiba Industrial Products and Systems Corporation, KAWAMATA SEIKI CO., LTD.
    Inventors: Takashi ARAKI, Toshiaki HIRATE, Motoyasu MOCHIZUKI, Masaaki MATSUMOTO, Ryou TAMURA, Hiroyasu FUKUHARA
  • Publication number: 20230274971
    Abstract: A processing apparatus for an electronic component includes a component holder configured to hold the electronic component, a turning unit configured to hold the component holder toward an outside of a predetermined circular track, a turning drive unit configured to turn the turning unit around a first axis along a central axis of the circular track, and a rotation drive unit provided on the turning unit and configured to rotate the component holder around a second axis along a radial direction of the circular track.
    Type: Application
    Filed: September 3, 2021
    Publication date: August 31, 2023
    Applicant: UENO SEIKI CO., LTD.
    Inventors: Takayuki MASUDA, Yoshimasa YODOGAWA
  • Patent number: 11703687
    Abstract: A head-up display device includes: light sources; a light source driver that drives the light sources; a second control unit that illuminates the light sources via the light source driver on the basis of illumination control data; and a DMD display element that generates display light on the basis of illumination light emitted by the light sources. The illumination control data includes control modes for generating the illumination light brightness corresponding to a requested brightness. The control modes have differing brightness ranges, which partially overlap each other. The second control unit switches modes between the control modes when the requested brightness has reached a mode switching value, which is located in a non-end part of an overlapping region where one of the brightness ranges of one of the control modes and another one of the brightness ranges of another one of the control modes overlap.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: July 18, 2023
    Assignee: NIPPON SEIKI CO., LTD.
    Inventors: Kiyoshi Tsuchida, Yasuhiro Yamakawa, Masanori Endo, Takashi Ishikawa
  • Patent number: 11698379
    Abstract: It is an object to provide a cover slip sticking device capable of improving matching between types of clearing agents and cover slips. As a means for solving the problem, a cover slip sticking device includes a dipping bath (21) in which slide glasses (22) on which specimens are attached are housed to be dipped in a clearing agent, a holder (11) having a cover slip (10) and cover slip information (14), a mounting part (C) on which the holder is mounted, a sticking part (B) sticking the cover slip (10) taken out from the holder (11) on the slide glass (22), a reading unit (62) reading the cover slip information (14), a storage unit (65) storing a type of the clearing agent and matching information between types of clearing agents and types of cover slips and a determination unit (66) comparing the cover slip information (14) read by the reading unit (62) and the type of the clearing agent stored in the storage unit (65) with the matching information to determine whether the types match with each other or not.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: July 11, 2023
    Assignees: SAKURA SEIKI CO., LTD., SAKURA FINETEK JAPAN CO., LTD.
    Inventors: Tomonori Kawai, Yamato Miyairi
  • Patent number: 11688355
    Abstract: A lighting control data generation method for generating lighting control data for controlling light sources in a HUD device includes: a measurement point specifying step for specifying measurement points in accordance with the brightness of light from a light source at each of output levels set to different values by a light source control unit which controls the light source with reference to lighting control data; and an output characteristic acquisition step for acquiring output characteristics by performing interpolation between the specified measurement points, wherein in the measurement point specification step, measurement points of a first specific point number are specified in a high-brightness mode in which the required brightness exceeds a threshold value, and measurement points of a second specific point number larger than the first specific point number are specified in a low-brightness mode in which the required brightness is the threshold value or low.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: June 27, 2023
    Assignee: NIPPON SEIKI CO., LTD.
    Inventors: Kiyoshi Tsuchida, Yasuhiro Yamakawa, Masanori Endo, Takashi Ishikawa
  • Publication number: 20230192451
    Abstract: In a lifting clamp, a pair of opposite pieces are provided to a main body, wherein the opposite pieces are opposed to form a gripping space where an object to be transported can be gripped. Contact units to contact the object to be transported are provided on the respective gripping space sides of the opposite pieces. A handle is attached to the main body to be rotatable relative to a spindle that is disposed along a gripping direction shown by a dot-dashed line. A conversion unit that converts a rotational movement by turning of the handle into gripping movement to push the contact unit to the gripping side is disposed between the contact unitand the opposite piece. The contact unitis attached to a spindle that supports the handleon one side, and the size of the gripping space can be changed by sliding the spindle with respect to the opposite piece.
    Type: Application
    Filed: June 3, 2021
    Publication date: June 22, 2023
    Applicants: ING CO., LTD., NAGAKI SEIKI CO., LTD.
    Inventors: Masao SHIOMI, Junsuke TAKADA, Akiko TSUCHIYA
  • Patent number: 11664634
    Abstract: A wire operating tool, a component for the wire operating tool, a wire cutting and dividing method, and a wire connecting method are provided. The wire operating tool includes a first wire gripping tool; a first rod member connected to the first wire gripping tool and configured to be expanded and contracted in accordance with relative movement of a moving portion with respect to a base portion; a second wire gripping tool; a second rod member connected to the second wire gripping tool; a connecting member that connects the moving portion of the first rod member and the second rod member to each other in a separable manner; and a load bearing member configured to bear a tensile load acting on the first wire gripping tool and the second wire gripping tool when the moving portion of the first rod member and the second rod are in a separate state.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: May 30, 2023
    Assignee: NAGAKI SEIKI CO., LTD.
    Inventors: Takayuki Nagaki, Tomoharu Miyazawa
  • Patent number: 11654468
    Abstract: A roll bending apparatus includes: a roll pair formed by a pair of rolls disposed facing each other, the roll pair being configured to sandwich an elongated material between the rolls to perform forming on the elongated material; a slide mechanism configured to slide the roll pair in a first normal direction that is a direction normal to a conveying direction of the elongated material on a plane including the conveying direction; and a tilt mechanism configured to rotate the roll pair about a tilt axis that extends in a second normal direction that is a direction orthogonal to the conveying direction and the first normal direction. The slide mechanism further slides the roll pair to change a position of the roll pair relative to the tilt axis.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: May 23, 2023
    Assignees: KAWASAKI JUKOGYO KABUSHIKI KAISHA, SANYO SEIKI CO. LTD.
    Inventors: Hideki Okada, Akiyoshi Ono
  • Patent number: 11624910
    Abstract: Provided is a head up display (HUD) device in which occurrence of postcard can be reduced. The HUD device causes an image to be visually recognized as a virtual image. The HUD device is provided with: a projector 100 that emits projection light including light indicating an image; a screen 60 which the projection light reaches; and a light shielding part S that shields at least a part of the projection light excluding the light indicating the image. The screen 60 has a display possible region Rc that is a range which the projection light can reach, and a display region Ra to which the image is projected.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: April 11, 2023
    Assignee: NIPPON SEIKI CO., LTD.
    Inventor: Seiya Koborinai
  • Patent number: 11538334
    Abstract: The present invention enables recognition of traffic light lamp color in place of or in addition to simply displaying the traffic light lamp color in a color image. A projection unit projects, towards a part subject to projection, display light L that can display an image at a variable display distance. A lamp color information acquisition unit acquires a lamp color of a traffic light which a vehicle will be driving through. A display distance adjustment unit changes the display distance of the image based on the lamp color acquired by an information acquisition unit.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: December 27, 2022
    Assignee: NIPPON SEIKI CO., LTD.
    Inventor: Maiko Saito
  • Patent number: D982403
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: April 4, 2023
    Assignee: NAGAKI SEIKI CO., LTD.
    Inventors: Takayuki Nagaki, Tamotsu Iwama