Patents by Inventor Hiroaki Saeki

Hiroaki Saeki 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: 7090741
    Abstract: A semiconductor processing system includes a common transfer chamber (34) having first and second compartments (46, 48) partitioned by a partition wall (44). First and second vacuum processing apparatuses (32E, 32A) are respectively connected to the first and second compartments (46, 48). A pressure control section (PCS) controls the pressures inside the first and second compartments (46, 48). The pressure control section (PCS) includes first and second vacuum pumps (68, 70) respectively connected to the first and second compartments (46, 48), and a line (76) connecting the delivery side of the second vacuum pump (70) to the suction side of the first vacuum pump (68). The pressure control section (PCS) performs a setting such that a second ultimate pressure or lowest operational pressure of the second compartment (48) is lower than a first ultimate pressure or lowest operational pressure of the first compartment (46).
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: August 15, 2006
    Assignee: Tokyo Electron Limited
    Inventors: Masaki Narushima, Hiroaki Saeki
  • Patent number: 7065966
    Abstract: A position control method by motor drive including of rotating a rotor of the motor drive according to the given target opening, and detecting the opening of a movable vane by an encoder, the motor drive opening and shutting a passage of an intake air pipe to a turbo charger of the automobile by the movable vane, and controlling the movable vane in the passage of the intake air pipe so that it reaches the target opening. The rotational position of the motor drive is controlled to the stop position in the direction where the movable vane is closed and the stop position in the direction where the movable vane is opened. The motor drive is controlled so that the passage of the intake air pipe becomes the target opening by setting the stop position as an operation reference position of the motor drive, and setting between the stop positions as the driving dynamic range motor drive.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: June 27, 2006
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Shigeki Yamada, Shoji Sasaki, Hiroaki Saeki, Masayuki Suganami
  • Patent number: 7013869
    Abstract: The present invention provides an electronically-controlled fuel injector, for an internal combustion engine, comprising a downstream fuel injection valve located near an air intake port of each cylinder or inside a cylinder, an air intake passage which bypasses the throttle valve located upstream of a downstream fuel injection valve, and a fuel vaporizing section including an upstream fuel injection valve, and a heater which vaporizes fuel injected from the upstream fuel injection valve; and further having an air intake port located upstream of the throttle valve, air flow control section for controlling an amount of air, said fuel vaporizing section, vaporized-fuel branch section for supplying vaporized fuel to each cylinder, and a vaporized-fuel distribution passage which extends from the vaporized-fuel branch section to an opening located in each air intake pipe located downstream of the throttle valve.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: March 21, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Masami Nagano, Takanobu Ichihara, Hiroaki Saeki
  • Patent number: 6990966
    Abstract: A slit-shaped heater holder 54 outside the heat-exchanger tube 55 can eliminate the use of adhesive in the heater assembly. A flat electrode 53 which is pressed on and in surface contact with the PTC heater 53 can improve the wear resistance of the heater contact, prevent the PTC heater breaking, and even assure the electrical connecting to the broken PTC heater.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: January 31, 2006
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Kenji Watanabe, Hiroaki Saeki, Kiyoshi Amou
  • Patent number: 6988867
    Abstract: There is provided a transfer apparatus capable of increasing the length of a transfer arm when it is extended, without increasing the size of the transfer arm when it is contracted. The transfer apparatus 4 comprising a transfer arm 17 which comprises: two rotating shafts 5 and 6 arranged coaxially or in parallel; a pair of first arms 7 and 8, one end portions of which are fixed to the rotating shafts 5 and 6, respectively; a pair of second arms 10 and 11, one end portions of which are connected to the other end portions of the pair of first arms 7 and 8 by means of pins, respectively; and a holding portion 14 for holding an object w to be processed, the holding portion 14 being connected to each of the other end portions of the pair of second arms 10 and 11 by means of pins, wherein the second arms 10 and 11 cross each other.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: January 24, 2006
    Assignee: Tokyo Electron Limited
    Inventors: Hiroaki Saeki, Teruo Asakawa
  • Publication number: 20060015279
    Abstract: A conveying mechanism (22) is disposed in a conveying vessel (10). The conveying mechanism includes: a moving member (38) which can move in a horizontal moving direction; a rotary table (48) attached to the moving member such that the rotary table can turn in a horizontal turning direction and move in the vertical direction; and two arm mechanisms which can bend and stretch in a horizontal operating direction relative to the rotary table. A reference position correcting device for the conveying mechanism includes: a light emitter (66) for emitting a sensing light beam (L); a light detector (68) for receiving the sensing light beam; and correcting means (62). The light emitter and the light detector are fixedly positioned on the conveying vessel.
    Type: Application
    Filed: November 13, 2003
    Publication date: January 19, 2006
    Inventors: Hiroaki Saeki, Toshio Kamigaki
  • Patent number: 6984097
    Abstract: An attaching and removing unit of a lid for a wafer carrier according to the invention includes: a lid holding plate that can move forward and backward relatively to a lid for a wafer carrier provided with a lock unit having a keyhole exposed outside, on a side of the keyhole; a driver for causing the lid holding plate to move forward and backward; and a key element protruding from the lid holding plate on a side of the lid in a pivotable manner, the key element disposed opposite the keyhole in a direction of the forward and backward movement. The lock unit is adapted to be locked and unlocked by the key element pivoting in the keyhole. In a locked state, the key element can be inserted into and released from the keyhole, and in an unlocked state, the key element is engaged with and can not be released from the keyhole, while the lid holding plate holds the lid. The lid holding plate is provided with a lid-detecting unit for detecting whether the lid holding plate is holding the lid or not.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: January 10, 2006
    Assignee: Tokyo Electron Limited
    Inventors: Hiroaki Saeki, Yoshiaki Sasaki, Keiichi Matsushima, Yasushi Taniyama, Shuuji Hagiwara
  • Publication number: 20050236219
    Abstract: A sensor and a control circuit are provided externally of a gear cover. This enhances reliability of a shift controller operated by an electric actuator and a motor driven control module similar thereto, and constitute them compact. Further, this provides a rotating position detection sensor suitably used for a switching device as described. A circuit and a sensor are not contaminated with oil or metal powder of a gear mechanism portion.
    Type: Application
    Filed: May 19, 2005
    Publication date: October 27, 2005
    Inventors: Masashi Saito, Youichi Nakano, Hayato Sugawara, Hiroaki Saeki
  • Publication number: 20050220582
    Abstract: A teaching method for storing in a controller a target moving position of a transfer mechanism in a processing system includes the steps of temporarily stopping the transfer mechanism in the middle of a moving route to a temporary moving destination position so as to make sure that the transfer mechanism does not interfere with another members at a potential interference location where there is a possibility that the transfer mechanism interferes with said another member, resuming to move the temporarily stopped transfer mechanism by inputting a moving instruction, repeating the temporarily stopping step and the resuming step, and when the pick reaches the temporary moving destination position, storing, as the target moving position, in the controller a position of the pick after adjusting and moving or without adjusting and moving the position of the pick.
    Type: Application
    Filed: March 10, 2005
    Publication date: October 6, 2005
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Motohiro Kumagai, Shigeru Ishizawa, Hiroaki Saeki
  • Patent number: 6950721
    Abstract: A positioning substrate is used for performing a teaching operation on a transfer mechanism for transferring a target substrate in a semiconductor processing system. The positioning substrate includes a substrate body made of a material selected from the group consisting of the same material as the target substrate, semiconductor, compound semiconductor, and ceramic. The substrate body has an outer contour sized to be handled by the transfer mechanism as an alternative to the target substrate. The positioning substrate also includes a positioning assistant having a combination of a positioning hole and a positioning reference line formed in the substrate body. The positioning hole is formed to penetrate the substrate body in a thickness direction. The positioning reference line is formed on a surface of the substrate body to extend across an opening of the positioning hole and have a predetermined width.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: September 27, 2005
    Assignee: Tokyo Electron Limited
    Inventors: Makoto Tashiro, Keisuke Kondoh, Hiroaki Saeki
  • Patent number: 6931957
    Abstract: A sensor and a control circuit are provided externally of a gear cover. This enhances reliability of a shift controller operated by an electric actuator and a motor driven control module similar thereto, and constitute them compact. Further, this provides a rotating position detection sensor suitably used for a switching device as described. A circuit and a sensor are not contaminated with oil or metal powder of a gear mechanism portion.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: August 23, 2005
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Masashi Saito, Youichi Nakano, Hayato Sugawara, Hiroaki Saeki
  • Publication number: 20050155823
    Abstract: A supporting mechanism (12A) is used for transferring a target substrate (W) in cooperation with a transfer arm (32), in a semiconductor processing system. The supporting mechanism includes first and second holding portions (38A to 38C, 40A to 40C) each configured to be moved up and down and transfer a substrate to and from the transfer arm. The first and second holding portions are configured to be moved relative to each other in a vertical direction without spatially interfering with each other, and support substrates at substantially the same horizontal coordinate position. The supporting mechanism further includes first and second drives (46, 48) configured to move the first and second holding portions up and down, and a controller (68) configured to control the first and second drives. The controller is arranged to control the first and second drives to alternatively support a substrate by the first and second holding portions.
    Type: Application
    Filed: January 29, 2003
    Publication date: July 21, 2005
    Inventors: Tsutomu Hiroki, Hiroaki Saeki
  • Publication number: 20050103270
    Abstract: In a port structure 16A in a semiconductor processing system 2, a door 20A is disposed in a port 12A defined by upright wall 52 and 54. A table 48 opposed to the port is disposed outside the system. Defined on the table is a mount region 76 for mounting an open type cassette 18A for a process subject substrate W. A hood 50 is disposed rotatable relative to the table. The hood defines in its closed position a closed space surrounding the mount region and port, the space having a size to receive the cassette. First ventholes 58 are formed in the upright walls and/or the door so as to introduce gas from within the system into the closed space in the hood. Second ventholes 72 are formed in the table so as to discharge the gas can be discharged out of the closed space.
    Type: Application
    Filed: February 17, 2003
    Publication date: May 19, 2005
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Tetsuo Yoshida, Yoshiaki Sasaki, Hiroaki Saeki, Yasushi Taniyama, Hiroshi Takizawa
  • Publication number: 20050087300
    Abstract: A main carrying device forming a part of a processing system, comprising a casing (40) forming a main carrying chamber (44) having vacuum atmosphere, the casing (40) further comprising a plurality of transfer ports (52A, 52B) for transferring the processed body (W) between the carrying chamber 44 and the outside, a mobile body (58) is slidably installed on a guide rail (48) horizontally installed in the carrying chamber (44), a linear motor mechanism (54, 62) for moving the mobile body (58) along the guide rail (48) is installed, a holding body (64) for holding the processed body (W) is liftably connected to the mobile body (58) through a support member (66), and a lifting mechanism (74) for lifting the support member (66) relative to the mobile body (58) is installed in the casing (40) at a position corresponding to the transfer ports (52A, 52B).
    Type: Application
    Filed: December 25, 2002
    Publication date: April 28, 2005
    Inventors: Shigeru Ishizawa, Hiroaki Saeki
  • Patent number: 6884019
    Abstract: A conveying arm of the invention includes a first pivotable shaft connected to a first arm which is also pivotably connected to a third arm having an intermediate pivotable portion. The third arm is also pivotably connected to a fifth arm which is also pivotably connected to a seventh arm which has a holding portion for an object to be conveyed. The conveying arm also includes a second pivotable shaft connected to a second arm which is also pivotably connected to a fourth arm having an intermediate pivotable portion. The fourth arm is also pivotably connected to a sixth arm which is also pivotably connected to the seventh arm. With respect to both the third and fourth arms, a line linking one-side end portion to an intermediate pivotable portion is substantially perpendicular to a line linking the other-side end portion to the intermediate pivotable portion.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: April 26, 2005
    Assignee: Tokyo Electron Limited
    Inventor: Hiroaki Saeki
  • Publication number: 20050022783
    Abstract: The present invention provides an electronically-controlled fuel injector, for an internal combustion engine, comprising a downstream fuel injection valve located near an air intake port of each cylinder or inside a cylinder, an air intake passage which bypasses the throttle valve located upstream of a downstream fuel injection valve, and a fuel vaporizing section including an upstream fuel injection valve, and a heater which vaporizes fuel injected from the upstream fuel injection valve; and further having an air intake port located upstream of the throttle valve, air flow control section for controlling an amount of air, said fuel vaporizing section, vaporized-fuel branch section for supplying vaporized fuel to each cylinder, and a vaporized-fuel distribution passage which extends from the vaporized-fuel branch section to an opening located in each air intake pipe located downstream of the throttle valve.
    Type: Application
    Filed: October 9, 2003
    Publication date: February 3, 2005
    Inventors: Masami Nagano, Takanobu Ichihara, Hiroaki Saeki
  • Publication number: 20050006230
    Abstract: A semiconductor processing system includes a common transfer chamber (34) having first and second compartments (46, 48) partitioned by a partition wall (44). First and second vacuum processing apparatuses (32E, 32A) are respectively connected to the first and second compartments (46, 48). A pressure control section (PCS) controls the pressures inside the first and second compartments (46, 48). The pressure control section (PCS) includes first and second vacuum pumps (68, 70) respectively connected to the first and second compartments (46, 48), and a line (76) connecting the delivery side of the second vacuum pump (70) to the suction side of the first vacuum pump (68). The pressure control section (PCS) performs a setting such that a second ultimate pressure or lowest operational pressure of the second compartment (48) is lower than a first ultimate pressure or lowest operational pressure of the first compartment (46).
    Type: Application
    Filed: August 29, 2002
    Publication date: January 13, 2005
    Inventors: Masaki Narushima, Hiroaki Saeki
  • Publication number: 20040238122
    Abstract: A semiconductor processing system includes an intermediate structure (37A, 37B) disposed between an atmospheric pressure entrance transfer chamber (32) and a vacuum common transfer chamber (36). The intermediate structure includes a transfer passage (38A, 38B) for a target substrate (W) to pass therein. The transfer passage includes a first buffer chamber (70), a middle transfer chamber (72), and a second buffer chamber (74) detachably connected. An additional processing apparatus (110, 110A) is detachably connected to the middle transfer chamber. The intermediate structure is selectively arranged in first or second state. In the first state, the additional processing apparatus (110) performs a vacuum process, while the first buffer chamber (70) is a load-lock chamber. In the second state, the additional processing apparatus (110A) performs an atmospheric pressure process, while the second buffer chamber (74) is a load-lock chamber.
    Type: Application
    Filed: February 12, 2004
    Publication date: December 2, 2004
    Inventors: Shigeru Ishizawa, Hiroaki Saeki, Yoshimitsu Tamura, Shigetoshi Hosaka, Masahide Itoh, Kazushi Tahara, Yasushi Kodashima
  • Patent number: 6820864
    Abstract: Atomization and vaporization of spray in a fuel supply system is promoted at the time of cold startup and the amount of fuel depositing on the inner wall of the intake manifold is reduced, thereby ensuring improved startability of an internal combustion engine of a car, reduced fuel costs and improved purification of exhaust gas. A very fine groove is formed on a heat transfer surface in a fuel vaporization promoting apparatus, wherein this groove is shaped in such a way that fuel is dispersed by the surface tension of the heat transfer surface and the fuel. This configuration ensures uniform dispersion of fuel on the heat transfer surface and effective promotion of vaporization.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: November 23, 2004
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Kiyoshi Amou, Yuzo Kadomukai, Hiroaki Saeki, Kenji Watanabe, Takanobu Ichihara, Masami Nagano
  • Patent number: 6802934
    Abstract: Two load lock chambers 130 and 132 are arranged between a first transfer chamber 122 and a second transfer chamber 133. Each of the load lock chambers is capable of accommodating a single wafer W. The first transfer chamber 122 is provided with a first transfer unit 124 having two substrate holders 124a, 124b each capable of holding a single object to be processed, in order to transport the wafer W among a load port site 120, the first load lock chamber 130, the second load lock chamber 132 and a positioning unit 150. The second transfer chamber 133 is provided with a second transfer unit 156 having two substrate holders 156a, 156b each capable of holding the single object to be processed, in order to transport the wafer between the first load lock chamber 130, the second load lock chamber 132 and respective vacuum processing chambers 158 to 164. Since the volume of each load lock chamber can be minimized, it is possible to perform the prompt control of atmospheres in the load lock chambers.
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: October 12, 2004
    Assignee: Tokyo Electron Limited
    Inventors: Hiroaki Saeki, Keiichi Matsushima, Teruo Asakawa, Masaki Narushima