Patents by Inventor Tetsuya Imai

Tetsuya Imai 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).

  • Patent number: 12012959
    Abstract: [Problem] To reduce imbalance among all movable components of a scroll compressor including a drive shaft and components fixed or connected to the drive shaft. In a scroll compressor 10, a shaft balancer 31 integrated with a drive shaft 30 includes a first weight 33 disposed on the opposite side from an eccentric pin 71 with respect to a center line CL0 of the drive shaft 30, and a bushing balancer 721 integrated with an eccentric bush 72 includes a second weight 723 disposed on the radially outer side of the eccentric bush 72 and on the opposite side from a center line CL1 of the eccentric pin 71 with respect to a center line CL2 of the eccentric bush 72. In a view from the axial direction of the drive shaft 30, the second weight 723 is symmetric with respect to a virtual line passing through the center of the drive shaft 30 and the center of the eccentric bush 72, and the first weight 33 is asymmetric with respect to the virtual line.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: June 18, 2024
    Assignee: SANDEN CORPORATION
    Inventors: Atsuo Teshima, Misako Kaburagi, Tetsuya Imai
  • Patent number: 11976653
    Abstract: A spiral orbiting wrap of an orbiting scroll is meshed with a spiral fixed wrap of a fixed scroll. A first compression chamber is formed by an inner wall surface of the orbiting wrap and an outer wall surface of a fixed wrap. A second compression chamber is formed by an inner wall surface of the fixed wrap and an outer wall surface of the orbiting wrap. The orbiting base plate of the orbiting scroll includes a first through hole capable of communicating the first compression chamber with the back pressure chamber and a second through hole capable of communicating the second compression chamber with the back pressure chamber. The first compression chamber communicates with the back pressure chamber via the first through hole prior to the communication of the second compression chamber with the back pressure chamber via the second through hole.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: May 7, 2024
    Assignee: SANDEN CORPORATION
    Inventors: Atsuo Teshima, Taizo Sato, Tetsuya Imai
  • Patent number: 11933297
    Abstract: [Problem] A scroll compressor is provided which has improved workability when a back pressure chamber and a compression chamber are communicated with each other. [Solution] A scroll compressor 1 includes a back pressure chamber 39 formed in a back surface of a mirror plate 31 of a movable scroll 22 in the scroll compressor 1, and a communication hole 51 which is formed in the mirror plate 31 of the movable scroll 22 and communicates the back pressure chamber 39 and a compression chamber 34 with each other. The communication hole 51 is constituted of a large-diameter hole section 52 located on the back pressure chamber 33 side of the mirror plate 31 of the movable scroll 22, and a small-diameter hole section 53 which continues from the large-diameter hole section 52 to reach the compression chamber 34.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: March 19, 2024
    Assignee: SANDEN CORPORATION
    Inventors: Hironobu Inaba, Taizo Sato, Tetsuya Imai
  • Publication number: 20240026882
    Abstract: Reduction of a rotational moment that occurs in an orbiting scroll is suppressed. A scroll compressor 10 includes: a fixed scroll 51; an orbiting scroll 52; an anti-rotation mechanism 300; and a back pressure chamber H5. A spiral orbiting wrap 522 of the orbiting scroll 52 is meshed with a spiral fixed wrap 512 of the fixed scroll 51. A first compression chamber C1 is formed by an inner wall surface 522a of the orbiting wrap 522 and an outer wall surface 512b of the fixed wrap 512. A second compression chamber C2 is formed by an inner wall surface 512a of the fixed wrap 512 and an outer wall surface 522b of the orbiting wrap 522. The orbiting base plate 521 of the orbiting scroll 52 includes a first through hole 701 capable of communicating the first compression chamber C1 with the back pressure chamber H5 and a second through hole 702 capable of communicating the second compression chamber C2 with the back pressure chamber H5.
    Type: Application
    Filed: November 19, 2021
    Publication date: January 25, 2024
    Applicant: SANDEN CORPORATION
    Inventors: Atsuo TESHIMA, Taizo SATO, Tetsuya IMAI
  • Publication number: 20240026881
    Abstract: [Problem] To reduce imbalance among all movable components of a scroll compressor including a drive shaft and components fixed or connected to the drive shaft. In a scroll compressor 10, a shaft balancer 31 integrated with a drive shaft 30 includes a first weight 33 disposed on the opposite side from an eccentric pin 71 with respect to a center line CL0 of the drive shaft 30, and a bushing balancer 721 integrated with an eccentric bush 72 includes a second weight 723 disposed on the radially outer side of the eccentric bush 72 and on the opposite side from a center line CL1 of the eccentric pin 71 with respect to a center line CL2 of the eccentric bush 72. In a view from the axial direction of the drive shaft 30, the second weight 723 is symmetric with respect to a virtual line passing through the center of the drive shaft 30 and the center of the eccentric bush 72, and the first weight 33 is asymmetric with respect to the virtual line.
    Type: Application
    Filed: November 19, 2021
    Publication date: January 25, 2024
    Applicant: SANDEN CORPORATION
    Inventors: Atsuo TESHIMA, Misako KABURAGI, Tetsuya IMAI
  • Publication number: 20240011487
    Abstract: Lubricant is satisfactorily supplied to a bearing that supports an eccentric bush. A scroll compressor (100) includes a fixed scroll (122) fixed to a housing (140), an orbiting scroll (124) that orbits with respect to the fixed scroll, and a conversion mechanism (300) that mutually converts a rotary motion of a drive shaft (166) and an orbiting motion of the orbiting scroll. The converting mechanism includes an eccentric shaft (260) that is provided on an end surface of the drive shaft and is eccentric with respect to the drive shaft, an eccentric bush (270) having a through hole (271) into which the eccentric shaft is fitted, and a bearing (280) that is press-fitted into a boss portion (250) formed on the orbiting scroll and supports an outer peripheral surface (272) of the eccentric bush. A lubricant supply passage (350) for supplying lubricant to the bearing is penetratingly formed in the eccentric bush.
    Type: Application
    Filed: October 15, 2021
    Publication date: January 11, 2024
    Applicant: SANDEN CORPORATION
    Inventors: Tetsuya IMAI, Taizo SATO
  • Patent number: 11867173
    Abstract: [Problem] A scroll compressor is provided which is capable of effectively reducing a pressure loss in a pathway extending from a discharge space to a discharge port. [Solution] The scroll compressor includes a discharge space 27 formed in a compressing mechanism cover 9 of a housing 11, a discharge hole 26 which is formed in a fixed scroll 21 and discharges a compressed refrigerant to the discharge space, a discharge port 51 which discharges the refrigerant to the outside of the housing, a relief passage 71 which communicates the discharge space and the discharge port with each other, and a differential pressure valve 74 which is provided in the relief passage and opens in accordance with a pressure difference between the discharge space and the discharge port. The relief passage opens in the discharge space above the discharge hole.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: January 9, 2024
    Assignee: SANDEN CORPORATION
    Inventors: Tetsuya Imai, Taizo Sato
  • Publication number: 20230374276
    Abstract: Disclosed is a composition containing: a cross-linked body of a hydrophilic polymer having a cross-linkable functional group; and a photo-radical generating agent. The cross-linked body is a hydrophilic polymer cross-linked through a disulfide bond.
    Type: Application
    Filed: October 13, 2021
    Publication date: November 23, 2023
    Inventors: Tetsuya IMAI, Yuki MIYAMOTO, Keiichi SAKAMOTO, Masaru WATANABE, Takashi KUMAKI
  • Patent number: 11773852
    Abstract: [Problem] A scroll compressor is provided which effectively suppresses the occurrence of localized contact caused by deformation of a fixed scroll or a movable scroll due to the influence of a compressive reaction force or thermal expansion and shortens a break-in time. [Solution] Laps 24 and 32 of a fixed scroll 21 and a movable scroll 22 are constituted to have a plurality of step portions between a winding end portion at an outermost periphery and a winding start portion at an innermost periphery and decrease stepwise in height toward the winding start portion from the winding end portion. The position and height of each step portion are set so that when the spiral laps 24 and 32 are expanded on a predetermined plane, a base point of each step portion is placed on a predetermined arc drawn on the plane.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: October 3, 2023
    Assignee: SANDEN CORPORATION
    Inventors: Hironobu Inaba, Taizo Sato, Tetsuya Imai
  • Publication number: 20230302572
    Abstract: A laser processing method that enables more precise processing using an ultrashort pulse laser. The laser processing method includes: a low fluence step of processing one or more layers to be processed sequentially from the workpiece by irradiating the layers to be processed with a pulse laser beam having a pulse width of less than 10 picoseconds at a predetermined low fluence; and a high fluence step of removing a protrusion generated on a surface of the layers to be processed by irradiation with the pulse laser beam at a high fluence higher than the low fluence, wherein the low fluence step and the high fluence step are repeated one or more times.
    Type: Application
    Filed: March 22, 2022
    Publication date: September 28, 2023
    Applicant: Sodick Co., Ltd.
    Inventors: Yoshinori OGAWA, Tetsuya IMAI, Takeshi JIN
  • Publication number: 20230302579
    Abstract: A laser processing device, including: an irradiation device, and a control device. The irradiation device is configured to process one or more target layers sequentially from the workpiece by irradiating the target layers with a pulse laser beam having a pulse width of less than 10 picoseconds at a predetermined low fluence, and to removing a protrusion generated on a surface of the target layers by irradiation with the pulse laser beam at a high fluence higher than the low fluence. The control device includes a switching unit and a switching condition setting unit. The switching unit switches the pulse laser beam output from said irradiation device between the low fluence and the high fluence based on switching conditions.
    Type: Application
    Filed: March 15, 2023
    Publication date: September 28, 2023
    Applicant: Sodick Co., Ltd.
    Inventors: Tetsuya IMAI, Takeshi JIN
  • Publication number: 20230272798
    Abstract: A scroll compressor prevents shortage of lubrication for sliding portions of a scroll unit. A scroll compressor 10 includes: an oil separator 100 that separates lubricant from the gaseous refrigerant discharged into a discharge chamber H3; a first lubricant chamber H5 that stores the lubricant separated by the oil separator 100; a first lubricant supply passage for supplying the lubricant in the first lubricant chamber H5 to a back pressure chamber H6; and a second lubricant supply passage for supplying the lubricant in the first lubricant chamber to a portion near an outer end portion of a scroll unit 50. The second lubricant supply passage is formed as a passage that allows the lubricant in the first lubricant chamber to flow through a second lubricant chamber H7 disposed above the first lubricant chamber H5 and connected to the first lubricant chamber H5 via an orifice OL3.
    Type: Application
    Filed: August 26, 2021
    Publication date: August 31, 2023
    Applicant: SANDEN CORPORATION
    Inventors: Tetsuya IMAI, Taizo SATO
  • Publication number: 20220178370
    Abstract: [Problem] A scroll compressor is provided which effectively suppresses the occurrence of localized contact caused by deformation of a fixed scroll or a movable scroll due to the influence of a compressive reaction force or thermal expansion and shortens a break-in time. [Solution] Laps 24 and 32 of a fixed scroll 21 and a movable scroll 22 are constituted to have a plurality of step portions between a winding end portion at an outermost periphery and a winding start portion at an innermost periphery and decrease stepwise in height toward the winding start portion from the winding end portion. The position and height of each step portion are set so that when the spiral laps 24 and 32 are expanded on a predetermined plane, a base point of each step portion is placed on a predetermined arc drawn on the plane.
    Type: Application
    Filed: March 16, 2020
    Publication date: June 9, 2022
    Applicant: SANDEN AUTOMOTIVE COMPONENTS CORPORATION
    Inventors: Hironobu INABA, Taizo SATO, Tetsuya IMAI
  • Publication number: 20220170461
    Abstract: [Problem] A scroll compressor is provided which has improved workability when a back pressure chamber and a compression chamber are communicated with each other. [Solution] A scroll compressor 1 includes a back pressure chamber 39 formed in a back surface of a mirror plate 31 of a movable scroll 22 in the scroll compressor 1, and a communication hole 51 which is formed in the mirror plate 31 of the movable scroll 22 and communicates the back pressure chamber 39 and a compression chamber 3-1 with each other. The communication hole 51 is constituted of a large-diameter hole section 52 located on the back pressure chamber 33 side of the mirror plate 31 of the movable scroll 22, and a small-diameter hole section 53 which continues from the large-diameter hole section 52 to reach the compression chamber 34.
    Type: Application
    Filed: March 16, 2020
    Publication date: June 2, 2022
    Applicant: SANDEN AUTOMOTIVE COMPONENTS CORPORATION
    Inventors: Hironobu INABA, Taizo SATO, Tetsuya IMAI
  • Publication number: 20220136500
    Abstract: [Problem] A scroll compressor is provided which is capable of effectively reducing a pressure loss in a pathway extending from a discharge space to a discharge port. [Solution] The scroll compressor includes a discharge space 27 formed in a compressing mechanism cover 9 of a housing 11, a discharge hole 26 which is formed in a fixed scroll 21 and discharges a compressed refrigerant to the discharge space, a discharge port 51 which discharges the refrigerant to the outside of the housing, a relief passage 71 which communicates the discharge space and the discharge port with each other, and a differential pressure valve 74 which is provided in the relief passage and opens in accordance with a pressure difference between the discharge space and the discharge port. The relief passage opens in the discharge space above the discharge hole.
    Type: Application
    Filed: March 16, 2020
    Publication date: May 5, 2022
    Applicant: Sanden Automotive Components Corporation
    Inventors: Tetsuya IMAI, Taizo SATO
  • Patent number: 11000037
    Abstract: An object of the present invention is to provide a benzylamide compound or a salt thereof that controls a mite. The present invention provides a benzylamide compound represented by Formula (1): or a salt thereof, wherein R1 represents C1-6 alkyl or C1-6 haloalkyl; R2 and R3 are identical or different and each represent hydrogen, halogen, cyano, nitro, C1-6 alkyl, or the like; R4 represents hydrogen, formyl C1-6 alkyl, or the like; R5 and R6 are identical or different and each represent hydrogen, halogen, or C1-6 alkyl, or the like; R7, R8, R9, R10, and R11 are identical or different and each represent hydrogen, halogen, or the like; X represents oxygen or sulfur; and n represents an integer of 0 to 2.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: May 11, 2021
    Assignee: OAT AGRIO CO., LTD.
    Inventors: Tetsuya Imai, Surendra Kumar Kumawat, Manish Kumar Singh, Pramod Kumar Chauhan, Amol Vasant Shelke, Rajesh Kumar Singh, Ram Kishore, Ashish Bhatt
  • Publication number: 20190281824
    Abstract: An object of the present invention is to provide a benzylamide compound or a salt thereof that controls a mite. The present invention provides a benzylamide compound represented by Formula (1): or a salt thereof, wherein R1 represents C1-6 alkyl or C1-6 haloalkyl; R2 and R3 are identical or different and each represent hydrogen, halogen, cyano, nitro, C1-6 alkyl, or the like; R4 represents hydrogen, formyl C1-6 alkyl, or the like; R5 and R6 are identical or different and each represent hydrogen, halogen, or C1-6 alkyl, or the like; R7, R8, R9, R10, and R11 are identical or different and each represent hydrogen, halogen, or the like; X represents oxygen or sulfur; and n represents an integer of 0 to 2.
    Type: Application
    Filed: July 14, 2017
    Publication date: September 19, 2019
    Inventors: Tetsuya Imai, Surendra Kumar Kumawat, Manish Kumar Singh, Pramod Kumar Chauhan, Amol Vasant Shelke, Rajesh Kumar Singh, Ram Kishore, Ashish Bhatt
  • Patent number: 9662607
    Abstract: A CO2 recovery unit includes an absorber that reduces CO2 in flue gas (101) discharged from a combustion facility (50) by absorbing CO2 by an absorbent, a regenerator that heats the absorbent having absorbed CO2 to emit CO2, and regenerates and supplies the absorbent to the absorber, and a regenerating heater that uses steam (106) supplied from the combustion facility (50) for heating the absorbent in the regenerator and returns heated condensed water (106a) to the combustion facility (50). The CO2 recovery unit further includes a condensed water/flue gas heat exchanger (57) that heats the condensed water (106a) to be returned from the regenerating heater to the combustion facility (50) by heat-exchanging the condensed water (106a) with the flue gas (101) in a flue gas duct (51) in the combustion facility (50).
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: May 30, 2017
    Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., THE KANSAI ELECTRIC POWER CO., INC.
    Inventors: Tatsuya Tsujiuchi, Hiromitsu Nagayasu, Takuya Hirata, Keiji Fujikawa, Tetsuya Imai, Hiroshi Tanaka, Tsuyoshi Oishi, Masahiko Tatsumi, Yasuyuki Yagi, Kazuhiko Kaibara
  • Publication number: 20160271557
    Abstract: A CO2 recovery unit includes an absorber that reduces CO2 in flue gas (101) discharged from a combustion facility (50) by absorbing CO2 by an absorbent, a regenerator that heats the absorbent having absorbed CO2 to emit CO2, and regenerates and supplies the absorbent to the absorber, and a regenerating heater that uses steam (106) supplied from the combustion facility (50) for heating the absorbent in the regenerator and returns heated condensed water (106a) to the combustion facility (50). The CO2 recovery unit further includes a condensed water/flue gas heat exchanger (57) that heats the condensed water (106a) to be returned from the regenerating heater to the combustion facility (50) by heat-exchanging the condensed water (106a) with the flue gas (101) in a flue gas duct (51) in the combustion facility (50).
    Type: Application
    Filed: June 1, 2016
    Publication date: September 22, 2016
    Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., THE KANSAI ELECTRIC POWER CO., INC.
    Inventors: Tatsuya Tsujiuchi, Hiromitsu Nagayasu, Takuya Hirata, Keiji Fujikawa, Tetsuya Imai, Hiroshi Tanaka, Tsuyoshi Oishi, Masahiko Tatsumi, Yasuyuki Yagi, Kazuhiko Kaibara
  • Patent number: D966851
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: October 18, 2022
    Assignees: PLUS CORPORATION, NAOTO FUKASAWA DESIGN LTD.
    Inventors: Naoto Fukasawa, Atsushi Tsukamoto, Tetsuya Imai, So Kubota