Patents Assigned to Giken Co., Ltd.
  • Publication number: 20220274051
    Abstract: An absorption type carbon dioxide removal and concentration device can remove or concentrate a carbon dioxide throughout four seasons and can be manufactured with a relatively simple structure. The device includes a carbon dioxide removal rotor that holds a carbon dioxide absorbent. The rotor is divided into at least a treatment zone and a regeneration zone. Air to be treated is ventilated through the treatment zone, so that carbon dioxide contained in the air to be treated is absorbed by a holding absorbent of the rotor portion, so that the CO2 can be separated and removed from the air to be treated. In the regeneration zone, regeneration air is ventilated, so that the carbon dioxide absorbed by the holding absorbent in the treatment zone is desorbed with the regeneration air to regenerate the holding absorbent. A total heat exchanger recovers latent heat and sensible heat from the regeneration exhaust.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 1, 2022
    Applicant: SEIBU GIKEN CO., LTD.
    Inventor: Koji INOUE
  • Publication number: 20220266790
    Abstract: The present invention realizes an improvement in the moldability of a resin portion that is injection-molded to an annular stator. A plurality of collar portions formed integrally with a peripheral edge of the insulating cover so as to project beyond the outer diameter of the annular stator, and a resin pin molded integrally with one of the collar portions, wherein a collar resin portion of the collar portion and a resin pin resin portion of the resin pin are integrated with each other when seen from above, and a first outer diameter of the collar resin portion is larger than a second outer diameter of the resin pin resin portion.
    Type: Application
    Filed: January 26, 2022
    Publication date: August 25, 2022
    Applicants: TAMAGAWA SEIKI CO., LTD., HONDA MOTOR CO., LTD., IWATAKI GIKEN CO., LTD.
    Inventors: Shinichi HARA, Kazuya KANETA, Eiji IWATAKI
  • Patent number: 11415613
    Abstract: An optical waveguide 1, an optical waveguide 2 are formed on a substrate 3 to be crossed with each other, modulator electrodes 11, 12, 13 and 14 are arranged along the optical waveguides 1, 2, and antennas 21, 22, 23, 24 (i.e., square patch antennas having an approximately same shape) are arranged around four corners of the square shape. The modulator electrode 11 is energized from the antenna 21 and the antenna 22, the modulator electrode 12 is energized from the antenna 24 and the antenna 23, the modulator electrode 13 is energized from the antenna 21 and the antenna 24, and the modulator electrode 14 is energized from the antenna 22 and the antenna 23. The light wave propagating through the optical waveguide 1 is modulated by an electric field of Y-direction, and the light wave propagating through the optical waveguide 2 is modulated by an electric field of X-direction.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: August 16, 2022
    Assignees: MIE University, National Institute of Advanced Industrial Science and Technology, SEIKOH GIKEN Co., Ltd.
    Inventors: Hiroshi Murata, Satoru Kurokawa, Yoshikazu Toba, Masahiro Sato
  • Patent number: 11415756
    Abstract: A duplex optical connector plug includes: a first engagement latch being elastically deformable and including a first abutting projection configured to abut on a front end of a first top wall and a first engagement part formed on an axial rear side of the first abutting projection and configured to engage with an optical connector adaptor when the first optical connector assembly is inserted into the optical connector adaptor; and a second engagement latch being elastically deformable and including a second abutting projection configured to abut on a front end of a second top wall and a second engagement part formed on an axial rear side of the second abutting projection and configured to engage with the optical connector adaptor when the second optical connector assembly is inserted into the optical connector adaptor.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: August 16, 2022
    Assignee: SEIKOH GIKEN CO., LTD.
    Inventors: Junji Taira, Yohei Takaishi, Masayuki Jibiki, Naotoshi Shiokawa
  • Patent number: 11389926
    Abstract: Provided is an optical fiber ferrule polishing jig capable of fixing an optical fiber ferrule and releasing the optical fiber ferrule. An optical fiber ferrule polishing jig 10A has; a base 12a having insertion holes 20 into which optical fiber ferrules 51 can be detachably inserted; pivoting rods 13 which are adjacent to the insertion holes 20 of the base 12a and rotatable around lower end portions 36; fixing pieces 14a installed in installation recesses 19a formed in the base 12a to fix the optical fiber ferrules 51 with respect to the insertion holes 20 by being moved as the rods are pivoted; and a plurality of coil springs 15a installed in the installation recesses 19a to bias the fixing pieces 14a so as to release fixing of the optical fiber ferrules 51 with respect to the insertion holes 20.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: July 19, 2022
    Assignee: SEIKOH GIKEN Co., Ltd.
    Inventor: Yuji Shibutani
  • Publication number: 20220221261
    Abstract: An inspection master can perform three- and five-axis measurements wherein measurement in a rotation axis or/and turning axis direction for a five-axis processing machine is added. In one aspect, peripheral-surface spherical reference portions protrudes laterally on a peripheral surface of a master main body having a tubular shape, including the peripheral surface and an upper surface, and an upper reference ball for detection of an inclination angle of the body protrudes upward on the upper surface. The reference portions are provided at two or more portions of the peripheral surface in a circumferential direction thereof. In another aspect, an upper reference ball protrudes upward on the upper surface, and upper-surface spherical reference portions protrudes upward at one or more portions of the upper surface on an outer side with respect to the ball. In another aspect, both the peripheral-surface and upper-surface spherical reference portions are on the master main body.
    Type: Application
    Filed: January 24, 2020
    Publication date: July 14, 2022
    Applicant: ASANUMA GIKEN CO., LTD.
    Inventor: Susumu ASANUMA
  • Patent number: 11385417
    Abstract: A connector plug, having: a plug body that houses an optical fiber inside; a latch that is supported on an outer surface of the plug body to be capable of being engaged with the adapter; a slider that is supported on the plug body to be slidable with respect to the plug body; and a stopper that is detachably attachable between the plug body and the slider, wherein the slider is capable of elastically deforming the latch toward the outer surface of the plug body, when the slider is slid in a detaching direction which is a direction of drawing the connector plug out of the adapter, the slider elastically deforms the latch toward the outer surface of the plug body, and when the stopper is attached between the plug body and the slider, the stopper restricts the slider from elastically deforming the latch toward the outer surface of the plug body.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: July 12, 2022
    Assignee: SEIKOH GIKEN Co., Ltd.
    Inventors: Junji Taira, Naotoshi Shiokawa, Masayuki Jibiki
  • Publication number: 20220186860
    Abstract: A joint that is coupled to a cylindrical fluid discharger whose peripheral edge expands radially outward. The joint includes a cylindrical coupler that is coupled to the fluid discharger and has a male screw on an outer peripheral surface thereof, an engager that engages with the peripheral edge, and a tubular body that has a female screw to be coupled to the male screw on an inner peripheral surface thereof, and switches between a first state in which the attachment and the detachment of the fluid discharger and the joint are allowed and a second state in which the attachment and the detachment of the fluid discharger and the joint are restricted.
    Type: Application
    Filed: July 27, 2021
    Publication date: June 16, 2022
    Applicant: FUMOTO GIKEN CO., LTD.
    Inventor: Ryohei YAMAMOTO
  • Patent number: 11358097
    Abstract: A honeycomb rotor recovery and concentration device recovers carbon dioxide gas from flue gas and the like. A carbon dioxide sorption honeycomb rotor is rotated in a casing that is separately sealed at least into a sorption zone and a desorption zone, and the honeycomb in the sorption zone is brought into contact with a raw material gas containing carbon dioxide in a wet state to sorb carbon dioxide gas. A desorption circulation circuit circulates from an outlet to an inlet of the desorption zone. Water supplied to a heater in the circuit is evaporated to form saturated steam, which is supplied to the desorption zone. In the desorption zone, carbon dioxide gas is desorbed by contact with the saturated steam. The design may make it possible to use low-temperature exhaust heat, and this may achieve reduction in size, high performance and high efficiency at the same time.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: June 14, 2022
    Assignee: SEIBU GIKEN CO., LTD.
    Inventor: Hiroshi Okano
  • Patent number: 11329418
    Abstract: A connector plug has a connector plug body, a slider supported on the connector plug body and a jig attachable to the slider. The jig has an insertion portion which can be inserted into a slot of the slider and an operation portion extended from the insertion portion. The insertion portion has first and second insertion portions separated from each other by a predetermined distance. The slider can be moved in the detaching direction when the jig is moved in the detaching direction in a state that a first locking portion of the first insertion portion and a second locking portion of the second insertion portion are locked to the inner wall of the slot, and the locked state of the first locking portion and the second locking portion can be released when a force is applied to the operation portion in an inside direction to shorten the predetermined distance.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: May 10, 2022
    Assignee: SEIKOH GIKEN Co., Ltd.
    Inventors: Junji Taira, Shuichi Takashi, Naotoshi Shiokawa, Masayuki Jibiki
  • Patent number: 11293745
    Abstract: In an inspection master, an upper-surface oblique reference portion opened obliquely upward is provided on an upper surface of a master main body including the upper surface and a peripheral surface. In an inspection master, a peripheral-surface oblique reference portion opened obliquely upward is provided on a peripheral surface of a master main body including an upper surface and the peripheral surface. In either of those cases, an upper-surface vertical reference portion opened vertically can be provided on the upper surface, and a peripheral-surface lateral reference portion opened laterally can be provided on the peripheral surface. Further, a reference ball for use in obtaining an inclination angle of the master main body inclined during accuracy inspection for a five-axis processing machine is provided at a center portion of the upper surface.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: April 5, 2022
    Assignee: ASANUMA GIKEN CO., LTD.
    Inventor: Susumu Asanuma
  • Patent number: 11179669
    Abstract: A dehumidification air conditioner reduces carbon dioxide levels in a low humidity workroom. Cooling dehumidification is performed on outdoor air in a pre-air-cooler to produce pre-cooled air, which is branched such that a first part passes through a processing zone of an adsorption rotor which can remove carbon dioxide and humidity simultaneously, and a second part passes through a purge zone of the adsorption rotor. Air which passed through the processing zone is supplied to a low humidity workroom. Air which passed though the purge zone of the adsorption rotor is mixed with outdoor air and then heated with a reproduction heater to produce heated air. The heated air is sent to a reproduction zone of the adsorption rotor, to simultaneously remove carbon dioxide and humidity from the adsorption rotor and produce an exhaust stream which exhausted out of the device.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: November 23, 2021
    Assignee: SEIBU GIKEN CO., LTD.
    Inventors: Koji Inoue, Keimei Furuki, Ayako Kuroda
  • Patent number: 11181294
    Abstract: An air conditioning apparatus saves space, has a low cost and a high energy efficiency. In a former stage, total heat exchange is carried out in a total heat exchange rotor which performs heat exchange between the return air from the indoor space and outdoor air. A passive desiccant rotor, if provided, may eliminate a the need for a regenerative heat source in a latter stage. Latent heat exchange is performed in a heat pump circuit which exchanges heat between the outdoor air and the return air which have undergone total heat exchange. Further, the air conditioning apparatus may realize reduction of the total cost of equipment by eliminating the outdoor unit, and may realize reduction of on-site construction cost after the installation of the equipment and shortening of the construction term.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: November 23, 2021
    Assignee: SEIBU GIKEN CO., LTD.
    Inventor: Nakahama Nobutaka
  • Publication number: 20210332903
    Abstract: An on-off valve includes a valve body housed in a valve body housing portion provided in a main body, the valve body being switchable between an open position and a closed position, an operating means that switch the valve body between the open position and the closed position, a discharge channel, one end of the discharge channel being communicated with a valve chamber of the main body, another end of the discharge channel being communicated with a discharge port, an attaching member inserted into the main body and protruding to a container side of the main body, and including a connection portion at a distal end of the attaching member, the connection portion being connected to a container discharge portion, and an insertion portion provided in the main body, the attaching member rotatably penetrating through the insertion portion, the insertion portion being communicated with the valve body housing portion.
    Type: Application
    Filed: March 29, 2021
    Publication date: October 28, 2021
    Applicant: FUMOTO GIKEN CO., LTD.
    Inventors: Ryohei YAMAMOTO, Yuho YAMAMOTO, Naoyuki YAMAMOTO
  • Patent number: 11094226
    Abstract: A resin molding is provided. The resin molding includes an optically transparent plate-shaped portion, which has a first surface having a smooth surface portion, and a second surface having plural sections, wherein each of the plural sections has a width and includes one or more convex portions which have one or more ridge lines extending in a ridge line direction. The ridge line direction of the one or more convex portions of at least one of the plural sections is different from the ridge line direction of the one or more convex portions of one or more of others of the plural sections. When the first surface of the resin molding is observed from outside, the resin molding has metallic appearance.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: August 17, 2021
    Assignee: SEIKOH GIKEN CO., LTD.
    Inventors: Takashi Yasuda, Masahide Hioki, Norihiro Kakinuma
  • Publication number: 20210223020
    Abstract: In an inspection master, an upper-surface oblique reference portion opened obliquely upward is provided on an upper surface of a master main body including the upper surface and a peripheral surface. In an inspection master, a peripheral-surface oblique reference portion opened obliquely upward is provided on a peripheral surface of a master main body including an upper surface and the peripheral surface. In either of those cases, an upper-surface vertical reference portion opened vertically can be provided on the upper surface, and a peripheral-surface lateral reference portion opened laterally can be provided on the peripheral surface. Further, a reference ball for use in obtaining an inclination angle of the master main body inclined during accuracy inspection for a five-axis processing machine is provided at a center portion of the upper surface.
    Type: Application
    Filed: June 20, 2019
    Publication date: July 22, 2021
    Applicant: ASANUMA GIKEN CO., LTD.
    Inventor: Susumu ASANUMA
  • Patent number: 11058988
    Abstract: An energy-efficient, space-saving, low-cost, waste-heat-utilizing ventilating air conditioning apparatus uses a honeycomb rotor having a function of adsorbing or absorbing contaminants such as carbon dioxide and VOC gas. The honeycomb rotor is disposed in a rotor rotating device having at least a processing zone and a re-generation desorption zone. Air to be processed is passed through the processing zone to remove contaminants such as carbon dioxide to produce supply air. Water is directly sprayed or dropped into a heat exchanger provided at an entrance of the re-generation desorption zone to evaporate the generated water film by heating. The generated saturated steam is introduced for desorbing carbon dioxide and pollutants, and the stream is discharged the stream outdoors. The ventilating air conditioning apparatus can operate without the energy loss associated with ventilation.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: July 13, 2021
    Assignee: SEIBU GIKEN CO., LTD.
    Inventor: Hiroshi Okano
  • Patent number: 10983289
    Abstract: The present invention provides an optical connector capable of fixing the tensile strength fibers of the optical cable to the optical connector while keeping the tensile strength sufficiently without sacrificing the easiness of assembling the optical connector. The optical connector The optical connector is configured to be attached to an optical cable having an optical fiber and tensile strength fibers extending along a longitudinal direction of the optical fiber, having: a connector body having a male screw; and a fixing member used for fixing the tensile strength fibers to the connector body, the fixing member having a female screw, wherein the tensile strength fibers are configured to be interposed between the male screw and the female screw and fixed to the connector body when the male screw formed on the connector body and the female screw formed on the fixing member are screwed with each other, and the male screw has a notch extending in a direction crossing a screw thread of the male screw.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: April 20, 2021
    Assignee: SEIKOH GIKEN Co., Ltd.
    Inventors: Masayuki Jibiki, Yoshihisa Kurakami, Junji Taira
  • Patent number: 10960365
    Abstract: A fine-bubble mixed liquid producing apparatus 1 includes a reservoir 4 and a bubble feeding means 6 for feeding bubbles to a liquid L stored in the reservoir 4, wherein the bubble feeding means 6 includes a rotary cylinder 20 having an emitting part 22 on the outer circumferential surface, the emitting part 22 for being rotationally driven by a drive means 10, a circulating means 40 for drawing out the liquid L stored in the reservoir 4 and feeding the liquid L from the emitting part 22 to the reservoir 4, and a gas-liquid mixing part 50 for mixing bubbles with the liquid L circulated by the circulating means 40. This apparatus enables a fine-bubble mixed liquid to be efficiently produced.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: March 30, 2021
    Assignee: NISSIN GIKEN CO., LTD.
    Inventors: Shinichi Yamamoto, Kenichi Yamamoto
  • Patent number: 10955037
    Abstract: A torque converter includes first and second dampers disposed in a torque transmission path during lockup, and a dynamic damper attached to the torque transmission path between the first and second dampers. The dynamic damper includes an inertial rotating body having a weight member mounted on an outer peripheral part of an inertia plate sandwiched between a pair of retaining plates, and an elastic member provided between the inertia plate and the retaining plates. A claw part is provided on one of the retaining plates disposed on a side opposite to the clutch constituent member with respect to the inertia plate. The first damper spring is sandwiched between the claw part and the clutch constituent member, and an elongated hole is formed in the inertia plate, the elongated hole extending lengthwise in a peripheral direction of the inertia plate while the claw part is inserted through the elongated hole.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: March 23, 2021
    Assignee: Yutaka Giken Co., Ltd.
    Inventors: Kentaro Watanabe, Ayako Shibazaki, Kazuto Nagaishi, Jun Komori