Patents by Inventor Tsutomu Ito
Tsutomu Ito 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: 10788833Abstract: Provided is a transport system in which a worker performs maintenance work on a shelf in a maintenance area within a warehouse in which a vehicle area where a transport vehicle travels and the maintenance area where the worker performs the maintenance work are formed separately. A safety device permits an entry of the worker into the maintenance area after the transport vehicle transporting the shelf takes the shelf down within the maintenance area in accordance with a travel instruction from a service device and then the transport vehicle within the maintenance area exits to the vehicle area.Type: GrantFiled: January 24, 2017Date of Patent: September 29, 2020Assignee: Hitachi Industrial Products, Ltd.Inventors: Manabu Fujii, Tsutomu Ito, Daisuke Noguchi, Jingpeng Xu, Kunihiko Aoki
-
Patent number: 10682894Abstract: A replenishment passage connects a compressor to a tank, and a first check valve is provided in the middle of the replenishment passage. A supply/discharge passage connects the tank to air suspensions. A supply/discharge switching valve is provided in the middle of the supply/discharge passage, and suspension control valves are provided at a location between the supply/discharge switching valve and the air suspensions. A discharge passage connects the supply/discharge switching valve to a suction port of the compressor, and a discharge passage open/close valve is provided in the middle of the discharge passage. When a vehicle height is lowered, air within the air suspensions is guided to the suction port of the compressor through the discharge passage, compressed by the compressor, and supplied into the tank.Type: GrantFiled: May 29, 2015Date of Patent: June 16, 2020Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Tsutomu Ito, Shunsuke Mori, Tomoyuki Lee, Tsutomu Iwamura, Yuki Yoshida
-
Publication number: 20190368482Abstract: A reciprocating compressor includes a cylinder (5) including a cylindrical cylinder portion (6) and a cylinder head portion (7) provided on one side of the cylinder portion, and a piston mechanism (8) reciprocably fittedly inserted on an inner peripheral side of the cylinder portion and including a piston (9) defining an inside of the cylinder portion into a compression chamber (10) and a non-compression chamber (11). A bottomed hole-shaped valve body housing portion (7B) is formed at the cylinder head portion. The valve body housing portion is opened to a piston side facing the piston in an axial direction of the cylinder portion. Further, a discharge valve unit (18) and a valve holding member (21) are provided in the valve body housing portion. The discharge valve unit is inserted in the valve body housing portion. The valve holding member holds the discharge valve unit in the valve body housing portion.Type: ApplicationFiled: January 25, 2018Publication date: December 5, 2019Inventors: Tsutomu ITO, Takafumi MARUTA
-
Publication number: 20190263212Abstract: An air suspension system includes air suspensions (1, 2) performing vehicle height adjustment in response to supply and discharge of air, a compressor (3) compressing air, a tank (4) storing compressed air, a first passage (6) connecting between the delivery side of the compressor and the tank, and a second passage (7) connecting between the delivery side of the compressor and the air suspensions. A first dryer (10) is provided in the middle of the first passage to dry air flowing through the first passage. A second dryer (11) is provided in the middle of the second passage to dry air flowing through the second passage. Thus, compressed air generated from ambient air sucked in by the compressor can be dried by the second dryer and supplied directly into the air chambers of the air suspensions.Type: ApplicationFiled: July 24, 2017Publication date: August 29, 2019Inventors: Tsutomu ITO, Kan KOBAYASHI
-
Publication number: 20190201840Abstract: An air suspension system includes an air suspension, a compressor, a dryer apparatus, and so forth. The dryer apparatus includes a dryer case, an inner cylinder, a first inlet port, a first outlet port, a first desiccant, an outer cylinder, a second inlet port, a second outlet port, a second other-end side filter, a second desiccant, and so forth. The first desiccant comprises a molecular sieve, for example, which exhibits high water adsorption performance at high temperature. On the other hand, the second desiccant comprises silica gel, for example, which exhibits high water adsorption performance at low temperature.Type: ApplicationFiled: September 13, 2017Publication date: July 4, 2019Inventors: Yoshinori KAWAI, Tsutomu ITO, Kan KOBAYASHI
-
Publication number: 20190100070Abstract: Provided is a closed type air suspension apparatus requiring no complicated control and capable of simplifying the overall structure. The air suspension apparatus includes a tank storing air, a return valve returning compressed air in an air suspension to the tank, a discharge valve discharging compressed air in the tank to the outside through an intake-discharge port when the compressed air between the intake side of a compressor body and the tank reaches a first value or more, and an intake valve opening when the pressure of the air between the intake side of the compressor body and the tank is at a second value less than the first value, thereby allowing the atmosphere (air) to be taken in from the intake-discharge port. The compressor body of a compressor compresses air including the compressed air in the tank.Type: ApplicationFiled: November 6, 2015Publication date: April 4, 2019Inventors: Tsutomu ITO, Kan KOBAYASHI
-
Publication number: 20190085841Abstract: Provided is an in-vehicle compression device that allows a compressor to be operated at a low current, and operated with low noise and low vibration according to a state of a vehicle. The in-vehicle compression device includes: a compressor including a cylinder and a piston that is slidably provided inside the cylinder and defines a compression chamber; a linear motor including a movable element reciprocatably connected to the piston; and a controller configured to control driving of the linear motor. The in-vehicle compression device is configured to supply a working fluid compressed in the compression chamber to a pressure device provided in a vehicle. The controller is configured to variably adjust a stroke of the piston according to a state of the vehicle.Type: ApplicationFiled: May 16, 2017Publication date: March 21, 2019Inventors: Tsutomu ITO, Yoshinori KAWAI, Kan KOBAYASHI
-
Patent number: 10190579Abstract: A balance weight includes a main weight portion extending over a range defined by a circular-arc circumferential edge centered at a rotational shaft hole side and a pair of virtual end surfaces located on the circular-arc circumferential edge on both sides of the rotational shaft hole, a pair of extension weight portions extending from the pair of virtual end surfaces to an opposite circular-arc side of the rotational shaft hole from the circular-arc circumferential edge, the rotational shaft hole provided at the main weight portion so as to be located on a central side of the circular-arc circumferential edge, a crank shaft attachment protrusion, a crank shaft hole provided at the crank shaft attachment protrusion radially eccentrically with respect to the rotational shaft hole, and a pair of spaces formed between positions on both sides of the crank shaft attachment protrusion and the pair of extension weight portions, respectively.Type: GrantFiled: May 28, 2015Date of Patent: January 29, 2019Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Tsutomu Ito, Hiroshi Fukudome, Naofumi Harada
-
Patent number: 10189328Abstract: A bracket (11) has an annular portion (12) provided with a trapezoidal convex portion (13) extending from an inner peripheral edge (12C) to outer peripheral edge (12D) of the annular portion. The convex portion has a top region (13A), an outer wall-side falling region (13B), and an inner wall-side falling region (13C). The annular portion and one vehicle body mounting portion (17) are connected to each other through a non-linear connecting portion (20), and the annular portion and the other vehicle body mounting portion (18) are connected to each other through a non-linear connecting portion (21). This structure makes it possible to increase the moment of inertia of area of the annular portion and to increase the flexural rigidity of the bracket. Further, it is possible to suppress a problem that the connecting portion (20) and the connecting portion (21) become nodes of vibration.Type: GrantFiled: December 24, 2015Date of Patent: January 29, 2019Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Naofumi Harada, Hiroshi Fukudome, Tsutomu Ito
-
Publication number: 20190003470Abstract: Provided is a compressor capable of achieving a reduction in overall size and an improvement in vehicle mountability by using a linear motor. The compressor 1 comprises a linear motor 2 having a reciprocating mover 6, a compression unit 9 having a piston 11 connected to the mover 6 at one end side of the linear motor 2 so as to reciprocate and a cylinder 10 slidably accommodating the piston 11 to form a compression chamber 10B, and an air dryer 17 connected to a cylinder head 14 of the compression chamber 10B of the compression unit 9 and filled therein with a desiccant 17C. The air dryer 17 is disposed along the axis in the movement direction of the mover 6 the piston 11.Type: ApplicationFiled: December 14, 2016Publication date: January 3, 2019Inventors: Yoshinori KAWAI, Tsutomu ITO, Kan KOBAYASHI, Hiroshi SAKAI
-
Publication number: 20180332672Abstract: An induction heating device and an induction heating method are provided. The entire areas to be heated of the workpiece can be uniformly heated to a predetermined high temperature, and uniform heating is possible even when the workpiece deforms in a non-uniform manner during heating. When areas to be heated are established on a workpiece so as to extend in one direction and the areas to be heated are induction-heated, the deformation amount on one edge of the areas to be heated is different from that on the other. This induction heating device includes; heating coils facing a portion of the areas to be heated when the workpiece is induction-heated; and a relative transfer means for transferring the workpiece and the heating coils along one direction in a relative manner, and the heating coils are disposed so as to correspond to the areas to be heated during the heating period.Type: ApplicationFiled: July 17, 2018Publication date: November 15, 2018Applicant: NETUREN CO., LTD.Inventors: Hitoshi Nakatsu, Masato Yoshioka, Yoshimasa Tanaka, Tsutomu Ito, Kenji Koyanagi, Masaki Sagae, Tatsuya Ishii, Yoshitaka Misaka, Yasuharu Ogawa
-
Publication number: 20180275664Abstract: Provided is a transport system in which a worker performs maintenance work on a shelf in a maintenance area within a warehouse in which a vehicle area where a transport vehicle travels and the maintenance area where the worker performs the maintenance work are formed separately. A safety device permits an entry of the worker into the maintenance area after the transport vehicle transporting the shelf takes the shelf down within the maintenance area in accordance with a travel instruction from a service device and then the transport vehicle within the maintenance area exits to the vehicle area.Type: ApplicationFiled: January 24, 2017Publication date: September 27, 2018Inventors: Manabu FUJII, Tsutomu ITO, Daisuke NOGUCHI, Jingpeng XU, Kunihiko AOKI
-
Patent number: 10057945Abstract: An induction heating device and an induction heating method are provided. The entire areas to be heated of the workpiece can be uniformly heated to a predetermined high temperature, and uniform heating is possible even when the workpiece deforms in a non-uniform manner during heating. When areas to be heated are established on a workpiece so as to extend in one direction and the areas to be heated are induction-heated, the deformation amount on one edge of the areas to be heated is different from that on the other. This induction heating device includes: heating coils facing a portion of the areas to be heated when the workpiece is induction-heated; and a relative transfer means for transferring the workpiece and the heating coils along one direction in a relative manner, and the heating coils are disposed so as to correspond to the areas to be heated during the heating period.Type: GrantFiled: April 6, 2012Date of Patent: August 21, 2018Assignee: NETUREN CO., LTD.Inventors: Hitoshi Nakatsu, Masato Yoshioka, Yoshimasa Tanaka, Tsutomu Ito, Kenji Koyanagi, Masaki Sagae, Tatsuya Ishii, Yoshitaka Misaka, Yasuharu Ogawa
-
Publication number: 20180079273Abstract: A replenishment passage connects a compressor to a tank, and a first check valve is provided in the middle of the replenishment passage. A supply/discharge passage connects the tank to air suspensions. A supply/discharge switching valve is provided in the middle of the supply/discharge passage, and suspension control valves are provided at a location between the supply/discharge switching valve and the air suspensions. A discharge passage connects the supply/discharge switching valve to a suction port of the compressor, and a discharge passage open/close valve is provided in the middle of the discharge passage. When a vehicle height is lowered, air within the air suspensions is guided to the suction port of the compressor through the discharge passage, compressed by the compressor, and supplied into the tank.Type: ApplicationFiled: May 29, 2015Publication date: March 22, 2018Inventors: Tsutomu ITO, Shunsuke MORI, Tomoyuki LEE, Tsutomu IWAMURA, Yuki YOSHIDA
-
Publication number: 20180015803Abstract: A bracket (11) has an annular portion (12) provided with a trapezoidal convex portion (13) extending from an inner peripheral edge (12C) to outer peripheral edge (12D) of the annular portion. The convex portion has a top region (13A), an outer wall-side falling region (13B), and an inner wall-side falling region (13C). The annular portion and one vehicle body mounting portion (17) are connected to each other through a non-linear connecting portion (20), and the annular portion and the other vehicle body mounting portion (18) are connected to each other through a non-linear connecting portion (21). This structure makes it possible to increase the moment of inertia of area of the annular portion and to increase the flexural rigidity of the bracket. Further, it is possible to suppress a problem that the connecting portion (20) and the connecting portion (21)become nodes of vibration.Type: ApplicationFiled: December 24, 2015Publication date: January 18, 2018Applicant: HITACHI AUTOMOTIVE SYSTEMS ,LTD.Inventors: Naofumi HARADA, Hiroshi FUKUDOME, Tsutomu ITO
-
Publication number: 20170221684Abstract: A plasma processing method includes removing a deposit, which adheres to a member within a processing vessel and includes at least one of a transition metal and a base metal, by plasma of a processing gas, wherein the processing gas includes Ar gas and a CHzFw gas, and does not includes a chlorine-based gas and a nitrogen-based gas. The deposit is removed by the plasma of the processing gas while applying a negative DC voltage to the member within the processing vessel, and the negative DC voltage is set to be equal to or less than ?100V such that argon ions in the plasma of the processing gas collide with the member within the processing vessel and the deposit is removed by sputtering of the argon ions.Type: ApplicationFiled: April 11, 2017Publication date: August 3, 2017Inventors: Masaru NISHINO, Takao FUNAKUBO, Shinichi KOZUKA, Ryosuke NIITSUMA, Tsutomu ITO
-
Publication number: 20170218933Abstract: A balance weight includes a main weight portion extending over a range defined by a circular-arc circumferential edge centered at a rotational shaft hole side and a pair of virtual end surfaces located on the circular-arc circumferential edge on both sides of the rotational shaft hole, a pair of extension weight portions extending from the pair of virtual end surfaces to an opposite circular-arc side of the rotational shaft hole from the circular-arc circumferential edge, the rotational shaft hole provided at the main weight portion so as to be located on a central side of the circular-arc circumferential edge, a crank shaft attachment protrusion, a crank shaft hole provided at the crank shaft attachment protrusion radially eccentrically with respect to the rotational shaft hole, and a pair of spaces formed between positions on both sides of the crank shaft attachment protrusion and the pair of extension weight portions, respectively.Type: ApplicationFiled: May 28, 2015Publication date: August 3, 2017Applicant: Hitachi Automotive Systems, Ltd.Inventors: Tsutomu ITO, Hiroshi FUKUDOME, Naofumi HARADA
-
Patent number: 9653317Abstract: A metal-containing deposit can be efficiently removed. A plasma processing method includes removing a deposit, which adheres to a member within a processing vessel and contains at least one of a transition metal and a base metal, by plasma of a processing gas containing a CxFy gas, in which x is an integer equal to or less than 2 and y is an integer equal to or less than 6, and without containing a chlorine-based gas and a nitrogen-based gas.Type: GrantFiled: October 23, 2014Date of Patent: May 16, 2017Assignee: TOKYO ELECTRON LIMITEDInventors: Masaru Nishino, Takao Funakubo, Shinichi Kozuka, Ryosuke Niitsuma, Tsutomu Ito
-
Patent number: 9591105Abstract: A communication apparatus includes a physical layer to perform signal transmission/reception with another communication end, and a protocol conversion section (PCL) to connect an upper level user application and the physical layer. The protocol conversion section includes a parameter extraction section to extract a prescribed parameter from communication start request data (CBW) transmitted from the user application, and a header addition section to add a header containing the extracted parameter to transmission data transmitted from the user application, and the physical layer transmits the transmission data with the header.Type: GrantFiled: January 27, 2009Date of Patent: March 7, 2017Assignee: SONY CORPORATIONInventors: Hiroyuki Fujinaga, Tsutomu Ito
-
Patent number: 9441619Abstract: A reciprocating compressor including a casing which has first and second cylinders, an electric motor which has a drive shaft mounted in the casing, first and second pistons fittingly inserted into the first and second cylinders respectively, so as to reciprocate therein, and first and second connecting rods attached to the first and second pistons, respectively, at ends thereof and which are situated in the crank chamber at the other ends thereof where first and second bearings are provided, respectively. A crank member is provided on the drive shaft within the crank chamber, and the crank member is fittingly inserted into the first bearing of the first connecting rod and the second bearing of the second connecting rod. The crank member has a positioning member which positions the first and second bearings with respect to an axial direction.Type: GrantFiled: March 13, 2014Date of Patent: September 13, 2016Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Tsutomu Ito, Teruaki Yamanaka