Patents by Inventor Takeshi Hida
Takeshi Hida 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).
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Publication number: 20210283504Abstract: A computer system detects occurrence of an action exchange in which one of a player character and an opponent character performs a first action and another one of the player character and the opponent character performs a second action to mutually exchange the actions. Based on a first stiff time related to the first action, a second stiff time related to the second action, and a time difference between the first stiff time and the second stiff time, when a stiff time (hereinafter referred to as an “own stiff time”) related to an action performed by the player character is shorter than a stiff time related to an action performed by the opponent character, the computer system presents a player controlling the player character with a recommended candidate action recommended to be performed after an end of the own stiff time.Type: ApplicationFiled: June 2, 2021Publication date: September 16, 2021Applicant: BANDAI NAMCO ENTERTAINMENT INC.Inventors: Kohei IKEDA, Ryo SAITO, Takeshi HIDA
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Patent number: 7014437Abstract: An oil separator and an oil reservoir are formed integral with a main casing. Also, an opening communicated with the oil reservoir is formed in a part of a lower portion of an oil separation space of the oil separator. Preferably, the opening is formed so that its width is increased as it approaches an outer peripheral side of the oil separation space from a center thereof. Further, a safety valve is installed so that a line connecting between the safety valve and the center of the oil separator is made substantially in parallel to axes of screw rotors.Type: GrantFiled: January 28, 2004Date of Patent: March 21, 2006Assignee: Hitachi, Ltd., trustee, for the benefit of Hitachi Air Conditioning Systems Co., Ltd.Inventors: Hiroki Ohsumimoto, Masayuki Urashin, Shigekazu Nozawa, Takeshi Hida, Hirotaka Kameya
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Patent number: 6884049Abstract: A screw compressor of which a female rotor is driven by a motor, and of which a male rotor is driven by the female rotor. The male or female rotor is composed of a member which is made of cast iron and is subjected to surface hardening treatment or heat treatment including quenching. The surface hardening treatment may include sulphonitriding or nitiriding treatment. In the case of subjecting the cast iron to the heat treatment, austemper treatment is applied.Type: GrantFiled: November 20, 2002Date of Patent: April 26, 2005Assignee: Hitachi, Ltd.,Inventors: Takeshi Hida, Masayuki Urashin, Shigekazu Nozawa, Hiroki Ohsumimoto, Hirotaka Kameya, Atsushi Watanabe
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Publication number: 20050063852Abstract: A screw compressor of which a female rotor is driven by a motor, and of which a male rotor is driven by the female rotor. The male or female rotor is composed of a member which is made of cast iron and is subjected to surface hardening treatment or heat treatment including quenching. The surface hardening treatment may include sulphonitriding or nitiriding treatment. In the case of subjecting the cast iron to the heat treatment, austemper treatment is applied.Type: ApplicationFiled: November 2, 2004Publication date: March 24, 2005Inventors: Takeshi Hida, Masayuki Urashin, Shigekazu Nozawa, Hiroki Ohsumimoto, Hirotaka Kameya, Atsushi Watanabe
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Publication number: 20040208771Abstract: An oil separator and an oil reservoir are formed integral with a main casing. Also, an opening communicated with the oil reservoir is formed in a part of a lower portion of an oil separation space of the oil separator. Preferably, the opening is formed so that its width is increased as it approaches an outer peripheral side of the oil separation space from a center thereof. Further, a safety valve is installed so that a line connecting between the safety valve and the center of the oil separator is made substantially in parallel to axes of screw rotors.Type: ApplicationFiled: January 28, 2004Publication date: October 21, 2004Inventors: Hiroki Ohsumimoto, Masayuki Urashin, Shigekazu Nozawa, Takeshi Hida, Hirotaka Kameya
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Publication number: 20030108446Abstract: A screw compressor of which a female rotor is driven by a motor, and of which a male rotor is driven by the female rotor. The male or female rotor is composed of a member which is made of cast iron and is subjected to surface hardening treatment or heat treatment including quenching. The surface hardening treatment may include sulphonitriding or nitiriding treatment. In the case of subjecting the cast iron to the heat treatment, austemper treatment is applied.Type: ApplicationFiled: November 20, 2002Publication date: June 12, 2003Inventors: Takeshi Hida, Masayuki Urashin, Shigekazu Nozawa, Hiroki Ohsumimoto, Hirotaka Kameya, Atsushi Watanabe
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Patent number: 6554595Abstract: In an oil-mist separator included by a compressor, an inlet passage directs a flow axis of a mixture gas including a mist of lubrication oil and a gas to be taken out of the compressor with a pressurized condition when the mixture gas reaches a chamber, and a discharge port for discharging the gas from the chamber opens in the chamber.Type: GrantFiled: May 2, 2001Date of Patent: April 29, 2003Assignee: Hitachi, Ltd.Inventors: Takeshi Hida, Shigekazu Nozawa, Masayuki Urashin, Hiroki Osumimoto, Hirotaka Kameya, Atsushi Watanabe
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Publication number: 20030021714Abstract: The screw compressor according to the invention is provided with a main casing 1 having male and female rotors 6, a discharge casing 3 having a discharge passage 15 for compressed gas discharged from the rotors, and an oil reservoir 19 for accumulating oil separated from the compressed gas. The discharge casing is provided with a cylindrical oil separating space section 4 formed therein so as to communicate with the discharge passage, which discharge passage is connected in a tangential direction of the oil separating space section. Further, a discharge port 14 is provided so as to communicate with the oil separating space section, and a cylindrical member 5 is further provided in the oil separating space section so as to be concentric therewith. The oil separating space section and the oil reservoir are connected to each other through a communication passage having a cross-sectional area smaller than that of the oil separating space section.Type: ApplicationFiled: November 30, 2001Publication date: January 30, 2003Inventors: Hiroki Osumimoto, Shigekazu Nozawa, Masayuki Urashin, Takeshi Hida, Hirotaka Kameya, Atsushi Watanabe
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Patent number: 6506039Abstract: The screw compressor according to the invention is provided with a main casing 1 having male and female rotors 6, a discharge casing 3 having a discharge passage 15 for compressed gas discharged from the rotors, and an oil reservoir 19 for accumulating oil separated from the compressed gas. The discharge casing is provided with a cylindrical oil separating space section 4 formed therein so as to communicate with the discharge passage, which discharge passage is connected in a tangential direction of the oil separating space section. Further, a discharge port 14 is provided so as to communicate with the oil separating space section, and a cylindrical member 5 is further provided in the oil separating space section so as to be concentric therewith. The oil separating space section and the oil reservoir are connected to each other through a communication passage having a cross-sectional area smaller than that of the oil separating space section.Type: GrantFiled: November 30, 2001Date of Patent: January 14, 2003Assignee: Hitachi, Ltd.Inventors: Hiroki Osumimoto, Shigekazu Nozawa, Masayuki Urashin, Takeshi Hida, Hirotaka Kameya, Atsushi Watanabe
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Publication number: 20020054823Abstract: In an oil-mist separator included by a compressor, an inlet passage directs a flow axis of a mixture gas including a mist of lubrication oil and a gas to be taken out of the compressor with a pressurized condition when the mixture gas reaches a chamber, and a discharge port for discharging the gas from the chamber opens in the chamber.Type: ApplicationFiled: May 2, 2001Publication date: May 9, 2002Inventors: Takeshi Hida, Shigekazu Nozawa, Masayuki Urashin, Hiroki Osumimoto, Hirotaka Kameya, Atsushi Watanabe
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Patent number: 6273693Abstract: Oil separation from discharge gas of a screw compressor is performed with a demister provided in a discharge chamber. For solving unevenness in the speed distribution of the gas in the chamber, at least one auxiliary demister for oil separation is disposed at a local position immediately behind or near the downstream side of an outlet of a discharge passage in a discharge casing so as to be perpendicular to the flow direction of the gas at the outlet. In addition, at least one obstacle plate is disposed on the downstream side of the auxiliary demister.Type: GrantFiled: December 7, 2000Date of Patent: August 14, 2001Assignee: Hitachi, Ltd.Inventors: Takeshi Hida, Shigekazu Nozawa, Masayuki Urashin, Noriyuki Yamazaki
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Patent number: 6257855Abstract: A screw rotor for use in screw compressors and screw vacuum pumps comprises a pair of rotors including a male rotor and a female rotor. These rotors have helical lobes in an axial direction and mesh with each other to form a compression chamber. Depending upon a lobe configuration of the rotors, suction pressure and discharge pressure, a negative torque for self-rotation as well as a positive torque opposing to rotation due to a compression action is generated on the female rotor in operation. This phenomenon generates when a value obtained by integrating a torque acting on the female rotor over an entire cross section in an axial direction of the rotors becomes negative. When the negative torque is generated, noises due to tooth separating vibration is caused. Then, a lobe profile is defined such that a magnitude of the negative torque is smaller than that of the positive torque in respective cross sections of the female rotor.Type: GrantFiled: November 18, 1999Date of Patent: July 10, 2001Assignee: Hitachi, Ltd.Inventors: Hirotaka Kameya, Shigekazu Nozawa, Masayuki Urashin, Takeshi Hida, Masakazu Aoki
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Publication number: 20010000320Abstract: Oil separation from discharge gas of a screw compressor is performed with a demister provided in a discharge chamber. For solving unevenness in the speed distribution of the gas in the chamber, at least one auxiliary demister for oil separation is disposed at a local position immediately behind or near the downstream side of an outlet of a discharge passage in a discharge casing so as to be perpendicular to the flow direction of the gas at the outlet. In addition, at least one obstacle plate is disposed on the downstream side of the auxiliary demister.Type: ApplicationFiled: December 7, 2000Publication date: April 19, 2001Inventors: Takeshi Hida, Shigekazu Nozawa, Masayuki Urashin, Noriyuki Yamazaki
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Patent number: 6183227Abstract: Oil separation from discharge gas of a screw compressor is performed with a demister provided in a discharge chamber. For solving unevenness in the speed distribution of the gas in the chamber, at least one auxiliary demister for oil separation is disposed at a local position immediately behind or near the downstream side of an outlet of a discharge passage in a discharge casing so as to be perpendicular to the flow direction of the gas at the outlet. In addition, at least one obstacle plate is disposed on the downstream side of the auxiliary demister.Type: GrantFiled: April 6, 1999Date of Patent: February 6, 2001Assignee: Hitachi, Ltd.Inventors: Takeshi Hida, Shigekazu Nozawa, Masayuki Urashin, Noriyuki Yamazaki
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Patent number: 5660539Abstract: A lubricating construction of a scroll compressor includes a seal member provided between an orbiting scroll and a main frame to isolate a back pressure chamber from bearing portions to thereby keep the bearing portions substantially under a discharge pressure, a first oil feed passage extending from a lubricating oil portion under the discharge pressure to a space, disposed adjacent to an end of a crank portion of the crankshaft, through the crankshaft, a second oil feed passage extending from the above space to be opened to sliding portions of end plates of the orbiting and stationary scrolls through the end plate of the orbiting scroll, and communicating with the back pressure chamber, and a third oil feed passage extending from midway the first oil feed passage to be opened to an outer peripheral surface of the crankshaft, and serving to supply a lubricating oil to a main bearing portion by the use of a centrifugal pumping action produced by rotation of the crankshaft.Type: GrantFiled: October 24, 1995Date of Patent: August 26, 1997Assignee: Hitachi, Ltd.Inventors: Mutsunori Matsunaga, Takao Mizuno, Kenji Tojo, Hideyuki Ueda, Takeshi Hida
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Patent number: 5622488Abstract: A scroll type compressor having high efficiency and high reliability is obtained by preventing leakage of a compression chamber, increasing air tightness thereof and securing a smooth motion of an orbiting scroll member. A second frame member supported by a first frame member and slightly movable in the axial direction is disposed in the rear of an orbiting scroll member. Force is applied to the rear of the second frame member, and a slight axial movement of the orbiting scroll member is regulated by a fixed scroll member and the second frame member. As a result, both the scroll members are in tight contact or close to each other with a small space, and a smooth movement thereof can be secured, which makes it possible to obtain a scroll type compressor having high efficiency and high reliability.Type: GrantFiled: August 15, 1995Date of Patent: April 22, 1997Assignee: Hitachi, Ltd.Inventors: Kenji Tojo, Hideyuki Ueda, Takao Mizuno, Takeshi Hida