Patents by Inventor Kazumasa Ito
Kazumasa 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).
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Publication number: 20090141057Abstract: A liquid-discharge-failure detecting apparatus includes a light-emitting element and a light-receiving element. The light-emitting element emits a laser beam in a direction that intersects with a direction in which a droplet of liquid is discharged. The beam is elliptical in cross section. The light-receiving element receives a scattered light generated by scattering of the laser beam by the droplet. The light-receiving element is externally adjacent to a circumference of the beam at a position where a beam diameter of the beam is small.Type: ApplicationFiled: November 24, 2008Publication date: June 4, 2009Inventors: Hirotaka HAYASHI, Kazumasa ITO
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Publication number: 20090115812Abstract: A liquid-discharge-failure detecting apparatus includes a light-emitting unit, a light-receiving unit, and a light-trapping unit. The light-emitting unit emits a detection beam. The light-receiving unit is located at a position offset from an optical axis of the detection beam, and receives a scattered light generated by scattering of the detection beam by a droplet of ink (liquid). The light-trapping unit traps a detection beam that travels straight without striking the droplet so that the detection beam does not enter the light-receiving unit as a stray light.Type: ApplicationFiled: November 5, 2008Publication date: May 7, 2009Inventors: Kazumasa Ito, Hirotaka Hayashi
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Publication number: 20090091595Abstract: A liquid-discharge-failure detecting apparatus detects a liquid discharge failure. A light-emitting element emits a beam onto a droplet of liquid discharged from a liquid-droplet-discharge surface with an optical axis of the beam making a right angle with a direction in which the droplet is discharged. A light-receiving element receives a scattered light generated by scattering of the beam by the droplet. A failure detecting unit detects the liquid discharge failure from data of the scattered light received by the light-receiving element. A distance changing unit changes a distance between the liquid-droplet-discharge surface and the optical axis of the beam based on, for example, a diameter of the droplet.Type: ApplicationFiled: October 8, 2008Publication date: April 9, 2009Inventors: Hirotaka HAYASHI, Kazumasa Ito
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Patent number: 7513807Abstract: An operation control system for a planing boat can include a mode selection module configured to allow a driver to select a driving mode of either one of a normal operation mode, in which the boat cruises at a speed in response to the displacement of an acceleration controller, and a speed-fixing mode, in which the boat cruises at a fixed speed at a level when a speed-fixing controller is operated. The system can also include a planing condition determination module configured to determine whether a hull is at the stage of planing, in which the mode selection module is configured to prohibit the driving mode from switching to the speed-fixing mode if the planing condition determination module determines that the hull is not at the stage of planning. The mode selection module can also be configured to permit the driving mode to switch to the speed-fixing mode if the planing condition determination module determines that the hull is at the stage of planing.Type: GrantFiled: June 12, 2006Date of Patent: April 7, 2009Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Yoshimasa Kinoshita, Sumihiro Takashima, Shu Akuzawa, Kazumasa Ito, Toshiyuki Hattori, Fujino Kenichi, Yoshida Tatsuya, Suzuki Masaru
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Publication number: 20090032341Abstract: According to an emergency brake device for an elevator, a brake body is capable of coming into and out of contact with an outer periphery of a sheave which is rotatable, and is capable of being displaced to a rotation direction of the sheave while maintaining a contact with the outer periphery of the sheave. Further, the brake body is arranged between the sheave and a gripper metal. The gripper metal includes an inclined portion which is caused to incline with respect to the outer periphery of the sheave. When the brake body is displaced in the rotation direction of the sheave, the brake body is meshed between the outer periphery of the sheave and the inclined portion. To the brake body, a connecting portion capable of being displaced with respect to the sheave is connected. The connecting body is displaced in a direction in which the brake body comes into and out of contact with the outer periphery of the sheave by a brake drive device.Type: ApplicationFiled: October 3, 2008Publication date: February 5, 2009Applicant: MITSUBISHI ELECTRIC CORPORATIONInventor: Kazumasa ITO
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Publication number: 20090006773Abstract: A signal processing apparatus able to raise a processing capability in processing accompanying access to a storing means is provided. Stream control units (SCU) 203_0 to 203_3 access data at an external memory system or local memories 204_0 to 204_3 according to a thread under control from a host processor. Processor units (PU) arrays 202_0 to 202_3 perform image processing by a different thread from the thread of the SCUs 203_0 to 203_3.Type: ApplicationFiled: May 22, 2006Publication date: January 1, 2009Inventors: Yuji Yamaguchi, Masatoshi Imai, Toshiharu Noda, Naosuke Asari, Tomoo Mitsunaga, Mitsuharu Ohki, Kazumasa Ito, Hidetoshi Nagano, Sumito Arakawa, Kei Ito
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Publication number: 20080301681Abstract: An information processing apparatus including: a plurality of data processing functional blocks each used for carrying out individual data processing; a flow control section configured to execute control of data flows among the data processing functional blocks; and a control section configured to carry out a setting process to set the data processing functional blocks and the flow control section. The control section acquires configuration information in accordance with a task list for data processing to be carried out; carries out the setting process to set the data processing functional blocks and the flow control section on the basis of the acquired configuration information; and constructs a data processing configuration adapted to various kinds of data processing to be carried out.Type: ApplicationFiled: May 30, 2008Publication date: December 4, 2008Inventors: Junichi Sakamoto, Masaharu Yoshimori, Tanio Nagasaki, Shinsuke Koyama, Kazumasa Ito, Minoru Takahata, Mikako Hatakenaka, Jin Satoh, Hideshi Yamada, Kenichiro Yokota, Hideki Takeuchi, Hitoshi Ishikawa
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Patent number: 7438688Abstract: In an apparatus adapted to measure a pulse rate of a subject, a plurality of band pass filters, each of which has a center frequency that is different from the others are provided. The band pass filters are connected in parallel to one another so as to be adapted to receive a first signal corresponding to a pulse wave of the subject and be operable to output a plurality of second signals each of which is obtained by filtering the first signal with each center frequency. A first processor is operable to obtain a fundamental frequency of the first signal. A selector is operable to select one of the second signals which is output from one of the band pass filters having such a center frequency that is closest to the fundamental frequency. A second processor is operable to calculate the pulse rate from the selected one of the second signals.Type: GrantFiled: August 28, 2006Date of Patent: October 21, 2008Assignee: Nihon Kohden CorporationInventors: Naoki Kobayashi, Kenji Miyata, Kazumasa Ito
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Patent number: 7428951Abstract: In a braking device for an elevator, a sheave around which main ropes for suspending a car and a counterweight are looped is provided with a pressing device. A braking disc provided with a plurality of engaging portions is pressed against the sheave by the pressing device. An engaging device has a movable portion that can be displaced between an engagement position corresponding to engagement with the engaging portions and a release position corresponding to release from the engaging portions. The braking disc can rotate together with the sheave when the movable portion is at the release position. The braking disc is stopped to brake rotation of the sheave when the movable portion is at the engagement position.Type: GrantFiled: August 19, 2004Date of Patent: September 30, 2008Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Kazumasa Ito
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Patent number: 7422495Abstract: An operation control system for a small boat can include a mode selection module configured to allow a driver to select between a plurality of driving modes including at least a normal operation mode, in which the boat cruises at a speed in response to the displacement of an acceleration controller, and a low-speed setting mode, in which the boat cruises at a preset low speed when a low-speed setting controller is operated; in which the mode selection module permits the driving mode to switch to the low-speed setting mode if the displacement of the acceleration controller is zero, or small or close to zero or is in or substantially at an idle position.Type: GrantFiled: January 20, 2006Date of Patent: September 9, 2008Assignee: Yamaha Marine Kabushiki KaishaInventors: Yoshimasa Kinoshita, Sumihiro Takashima, Shu Akuzawa, Kazumasa Ito, Toshiyuki Hattori
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Patent number: 7419033Abstract: An emergency brake device for an elevator includes a brake shoe portion provided inside a sheave 1 or deflector sheave of an elevator and having a brake shoe 5a at a lower end of the brake shoe portion, the brake shoe generating a braking force due to friction upon abutting an inner wall of an outer peripheral frame of the sheave or deflector sheave at a time of braking, the brake shoe portion having built therein spring mechanisms 51, 52 provided between the brake shoe and king pins 5f1, 5f2, which are offset in a rotation direction of the sheave or deflector sheave with respect to a centerline passing through a rotation shaft of the sheave or deflector sheave and are fixed on a bearing 1b side of the rotation shaft, the spring mechanisms each absorbing a force generated between the brake shoe and the king pin due to the braking force and being connected to the king pin at one end.Type: GrantFiled: June 14, 2004Date of Patent: September 2, 2008Assignee: Mitsubishiki Denki Kabushiki KaishaInventor: Kazumasa Ito
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Patent number: 7364480Abstract: A jet-propelled watercraft can include an engine output control system that adjusts the output of the engine based on a steering force and the engine speed. The control system can also be configured to detect abnormalities in the steering force sensor and to prohibit the increase engine output control when an abnormality is detected.Type: GrantFiled: June 29, 2005Date of Patent: April 29, 2008Assignee: Yamaha Marine Kabushiki KaishaInventors: Kazumasa Ito, Yoshimasa Kinoshita
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Publication number: 20080017456Abstract: An emergency brake apparatus for an elevator system is installed on an elevator cage or a balance weight of the elevator system and includes a grip member with slant surfaces and a pressing surface sandwiching a guide rail, a pressing member disposed movably between the slant surfaces of the grip member and the guide rail, and an electric solenoid connected to the pressing member and actuated by an electric signal. The electric solenoid positions the pressing member away from the guide rail in a non-braking operation while pushing the pressing member between the slant surfaces and the guide rail in a braking operation.Type: ApplicationFiled: July 24, 2007Publication date: January 24, 2008Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventor: Kazumasa Ito
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Publication number: 20070272645Abstract: An artificial nipple can include a nipple body portion connected to a mounting structure that is configured for mounting the nipple on an infant feeding bottle 11. A mammary papilla leading end portion 140 can be disposed at the leading end portion of a mammary papilla portion 130 and have a leading end opening portion 141. The wall from the nipple body portion to the mammary papilla leading end portion is made of a soft material. The inner layer on the inner side of the wall is formed of a shape holding layer made of a material having a rigidity capable of holding the wall shape. The outer layer on the surface side of the wall is formed of a tongue abutting layer having a smooth face for allowing a peristalsis motion by a tongue. Between the shape holding layer and the tongue abutting layer there is disposed a deformation absorbing layer which is made of a material having a lower rigidity than that of the material of the shape holding layer and the tongue abutting layer.Type: ApplicationFiled: July 28, 2005Publication date: November 29, 2007Inventors: Kazumasa Ito, Mitsuo Tashiro, Norio Kimura, Nobuyasu Endo
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Patent number: 7267201Abstract: An emergency brake apparatus for an elevator system is installed on an elevator cage or a balance weight of the elevator system and includes a grip member with slant surfaces and a pressing surface sandwiching a guide rail, a pressing member disposed movably between the slant surfaces of the grip member and the guide rail, and an electric solenoid connected to the pressing member and actuated by an electric signal. The electric solenoid positions the pressing member away from the guide rail in a non-braking operation while pushing the pressing member between the slant surfaces and the guide rail in a braking operation.Type: GrantFiled: June 29, 2001Date of Patent: September 11, 2007Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Kazumasa Ito
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Publication number: 20070194650Abstract: In a rotating electric machine including a field pole unit having ten magnetic poles (P=10) and an armature having twelve teeth (Q=12), armature coils are wound around the successive teeth with phase relationships and winding polarities arranged in the order of U+/U+, U?/V+, V?/V?, W?/V+, W+/W+, W?/U+, U?/U?, U+/V?, V+/V+, W+/V?, W?/W? and W+/U?, where “U,” “V” and “W” represent three phases of the individual armature coils while “+” and “?” denote winding polarities. Among all harmonic components of magnetomotive forces produced by the armature coils, harmonic components of orders lower than a synchronized component can be reduced in this rotating electric machine. This structure decreases eddy currents flowing in the field pole unit, resulting lower eddy current loss in the field pole unit of the rotating electric machine.Type: ApplicationFiled: January 15, 2007Publication date: August 23, 2007Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Kazumasa ITO, Kouki NAKA, Masatsugu NAKANO, Manabu KOBAYASHI
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Publication number: 20070170004Abstract: In a braking device for an elevator, a sheave around which main ropes for suspending a car and a counterweight are looped is provided with a pressing device. A braking disc provided with a plurality of engaging portions is pressed against the sheave by the pressing device. An engaging device has a movable portion that can be displaced between an engagement position corresponding to engagement with the engaging portions and a release position corresponding to release from the engaging portions. The braking disc can rotate together with the sheave when the movable portion is at the release position. The braking disc is stopped to brake rotation of the sheave when the movable portion is at the engagement position.Type: ApplicationFiled: August 19, 2004Publication date: July 26, 2007Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventor: Kazumasa Ito
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Publication number: 20070170409Abstract: According to an emergency brake device for an elevator, a brake body is capable of coming into and out of contact with an outer periphery of a sheave which is rotatable, and is capable of being displaced to a rotation direction of the sheave while maintaining a contact with the outer periphery of the sheave. Further, the brake body is arranged between the sheave and a gripper metal. The gripper metal includes an inclined portion which is caused to incline with respect to the outer periphery of the sheave. When the brake body is displaced in the rotation direction of the sheave, the brake body is meshed between the outer periphery of the sheave and the inclined portion. To the brake body, a connecting portion capable of being displaced with respect to the sheave is connected. The connecting body is displaced in a direction in which the brake body comes into and out of contact with the outer periphery of the sheave by a brake drive device.Type: ApplicationFiled: October 5, 2004Publication date: July 26, 2007Applicant: Mitsubishi Electric CorporationInventor: Kazumasa Ito
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Publication number: 20070089937Abstract: An emergency brake device for an elevator includes a brake shoe portion provided inside a sheave 1 or deflector sheave of an elevator and having a brake shoe 5a at a lower end of the brake shoe portion, the brake shoe generating a braking force due to friction upon abutting an inner wall of an outer peripheral frame of the sheave or deflector sheave at a time of braking, the brake shoe portion having built therein spring mechanisms 51, 52 provided between the brake shoe and king pins 5f1, 5f2, which are offset in a rotation direction of the sheave or deflector sheave with respect to a centerline passing through a rotation shaft of the sheave or deflector sheave and are fixed on a bearing 1b side of the rotation shaft, the spring mechanisms each absorbing a force generated between the brake shoe and the king pin due to the braking force and being connected to the king pin at one end.Type: ApplicationFiled: June 14, 2004Publication date: April 26, 2007Applicant: Mitsubishi Denki Kabushiki KaishaInventor: Kazumasa Ito
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Patent number: 7201620Abstract: An operation control system for a planing boat can include a mode selection module configured to allow a driver to select a driving mode of either one of a normal operation mode, in which the boat cruises at a speed in response to the displacement of an acceleration controller, and a speed-fixing mode, in which the boat cruises at a fixed speed at a level when a speed-fixing controller is operated. The system can also include a planing condition determination module configured to determine whether a hull is at the stage of planing, in which the mode selection module is configured to prohibit the driving mode from switching to the speed-fixing mode if the planing condition determination module determines that the hull is not at the stage of planning. The mode selection module can also be configured to permit the driving mode to switch to the speed-fixing mode if the planing condition determination module determines that the hull is at the stage of planing.Type: GrantFiled: January 20, 2006Date of Patent: April 10, 2007Assignee: Yamaha Marine Kabushiki KaishaInventors: Yoshimasa Kinoshita, Sumihiro Takashima, Shu Akuzawa, Kazumasa Ito, Toshiyuki Hattori