Patents by Inventor Tetsuo Maeda
Tetsuo Maeda 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: 20080232361Abstract: According to one embodiment, an IP broadcast system includes a transmitting side and a receiving side connected to the transmitting side through a broadcast network on an IP network. The transmitting side includes a multiplexer which generates a standardized multiplex frame including at least a header field and an information field by multiplexing a plurality of RTP packets. The receiving side includes a buffer which temporarily holds the multiplex frame from the broadcast network and a program reproducer which retrieves and analyzes the multiplex frame from the buffer, extracts a reproduction clock shared by a plurality of programs, demultiplexes a plurality of TSs for each program from the multiplex frame, and based on the reproduction clock, reproduces the programs from each TS.Type: ApplicationFiled: March 14, 2008Publication date: September 25, 2008Inventors: Kenji Kimiyama, Yoshiro Osaki, Naoko Satoh, Tetsuo Maeda
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Patent number: 7353816Abstract: The object of the present invention is to improve shooting precision by causing a bullet to be fired before retreating of the slide commences, which is a problem in related art 3.Type: GrantFiled: August 2, 2007Date of Patent: April 8, 2008Assignee: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Publication number: 20080017180Abstract: The object of the present invention is to improve shooting precision by causing a bullet to be fired before retreating of the slide commences, which is a problem in related art 3.Type: ApplicationFiled: August 2, 2007Publication date: January 24, 2008Applicant: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Patent number: 7315829Abstract: In a data conversion apparatus of a copyright protecting system, a data format judging portion judges whether or not the data is of a super distribution format, attribute information obtaining unit identifies the audio contents of the data and obtains the attribute information corresponding to the identified audio contents from the external equipment via the data transmission/receiving portion; and a data format conversion portion converts the audio contents together with the obtained attribute information to the super distribution data format to be supplied to an external recording apparatus.Type: GrantFiled: November 9, 1999Date of Patent: January 1, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kenji Tagawa, Masayuki Kozuka, Masataka Minami, Tetsuo Maeda
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Patent number: 7290539Abstract: An apparatus for installing a high-pressure gas cartridge of this invention comprises: a high-pressure gas cartridge attachment and detachment apparatus for an air gun comprising: a high-pressure gas cartridge housing provided in a clip of an air gun; a back grip panel for a grip formed as a clamp lever; a lever rotation axis constituting a rotation fulcrum for a back grip panel; and a pressing curved surface capable of pressing a bottom part of the high-pressure gas cartridge, wherein a side grip panel of the grip is provided in an attachable and detachable manner so as to open and close the high-pressure gas cartridge housing, the high-pressure gas cartridge may be attached and detached with the back grip panel of the grip rotated about the lever rotation fulcrum so as to be in an open state, and the back grip panel presses against the bottom of the high-pressure gas cartridge due to rotation centered about the lever rotation axis so as to be closed and so as to push up and install the high-pressure gas carType: GrantFiled: May 23, 2005Date of Patent: November 6, 2007Assignee: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Patent number: 7267119Abstract: An air gun including a slide, a barrel, a cylinder portion, a hit pin, a hollow valve pin chamber, a valve body, a gas supply port, a valve pin, a pressing section, a bullet feed nozzle link connected to a trigger; and a bullet feed nozzle.Type: GrantFiled: December 30, 2004Date of Patent: September 11, 2007Assignee: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Patent number: 7159584Abstract: The airgun firing mechanism of the present invention has a rotary magazine 1 with a plurality of bores 11 made from a material through which magnetic force can pass, and a magnet 10 is provided in the center of the magazine 1. Also, the airgun firing mechanism of the present invention has inner diameters of respective bores 11 of the rotary magazine 1 having a plurality of bores 11 formed to inner diameters capable of having pellets 91 inserted into them, with the magazine 1 being formed from a material that can pass magnetic force, and with a magnet 10 being provided in the center of the magazine 1. In this way, it is possible to repeatedly fire two different types of bullets, namely BB bullets 90 and pellets 91, using one magazine 1 of one airgun G.Type: GrantFiled: May 28, 2003Date of Patent: January 9, 2007Assignee: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Publication number: 20060260596Abstract: An apparatus for installing a high-pressure gas cartridge of this invention comprises: a high-pressure gas cartridge attachment and detachment apparatus for an air gun comprising: a high-pressure gas cartridge housing provided in a clip of an air gun; a back grip panel for a grip formed as a clamp lever; a lever rotation axis constituting a rotation fulcrum for a back grip panel; and a pressing curved surface capable of pressing a bottom part of the high-pressure gas cartridge, wherein a side grip panel of the grip is provided in an attachable and detachable manner so as to open and close the high-pressure gas cartridge housing, the high-pressure gas cartridge may be attached and detached with the back grip panel of the grip rotated about the lever rotation fulcrum so as to be in an open state, and the back grip panel presses against the bottom of the high-pressure gas cartridge due to rotation centered about the lever rotation axis so as to be closed and so as to push up and install the high-pressure gas carType: ApplicationFiled: May 23, 2005Publication date: November 23, 2006Inventors: Tetsuo Maeda, Yoshiyuki Maeda
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Patent number: 7120920Abstract: An easily manufacturable optical disc drive that provides for accurate writing and reading of information signals to and from a disc loaded therein by maintaining the horizontal balance of its base during operation, and that provides for smooth loading and unloading of a disc. The optical disc drive includes a base formed of a single metal plate of 1.4–1.8 mm thickness. Major components of the base (i.e., a disc rotation driving mechanism, an optical pickup and a pickup feeding mechanism) are disposed on the base in such a way that the total weight of these components is nearly evenly distributed on the base. The optical pickup is adapted to move across an optical disc between its inner and outer circumferences, while the optical disc is rotated by the disc rotation driving mechanism. The base is supported by a plurality (i.e., at least three) of supporting members, each with an elastic support piece.Type: GrantFiled: June 1, 2000Date of Patent: October 10, 2006Assignee: Sony CorporationInventor: Tetsuo Maeda
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Patent number: 7100922Abstract: A bull's eye target device with a target surface section provided with a central section and a plurality of ring sections, and a circuit substrate provided so as to be spaced from the rear surface of the target surface section. The front surface side of the target surface section is formed in such a manner that the central section is raised to the greatest extent, with the plurality of ring sections becoming relatively lower as the periphery is approached, and a central pressing part and plurality of ring-shaped pressing parts are formed so as to project at the rear surface side at positions corresponding to the central section and the plurality of ring sections. The circuit substrate is provided with circular independent terminals at positions corresponding to the central pressing part and plurality of ring-shaped pressing parts of the target surface section.Type: GrantFiled: December 3, 2004Date of Patent: September 5, 2006Assignee: MARUZEN Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Publication number: 20060162711Abstract: An air gun including a slide, a barrel, a cylinder portion, a hit pin, a hollow valve pin chamber, a valve body, a gas supply port, a valve pin, a pressing section, a bullet feed nozzle link connected to a trigger; and a bullet feed nozzle.Type: ApplicationFiled: December 30, 2004Publication date: July 27, 2006Inventors: Tetsuo Maeda, Yoshiyuki Maeda
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Publication number: 20060006597Abstract: An advantage of the invention is in providing a device a device capable of accurately determining a position to which a pellet has been fired and instantaneously sending points to a display unit. Namely, because the target surface is such that inside and outside of boundary lines are at different heights, in the event of an impact making contact with a boundary line, a pellet will always impact with and apply pressure to the inside part of the target for which the points are higher. A terminal of a circuit substrate corresponding to this higher points side then makes contact so as to provide excitation, and the points can be accurately displayed. The bull's eye target device of this invention is such that a target section is provided with a target surface section provided with a central section and a plurality of ring sections, and a circuit substrate provided so as to be spaced from the rear surface of the target surface section.Type: ApplicationFiled: December 3, 2004Publication date: January 12, 2006Inventors: Tetsuo Maeda, Yoshiyuki Maeda
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Publication number: 20040237952Abstract: The airgun firing mechanism of the present invention has a rotary magazine 1 with a plurality of bores 11 made from a material through which magnetic force can pass, and a magnet 10 is provided in the center of the magazine 1. Also, the airgun firing mechanism of the present invention has inner diameters of respective bores 11 of the rotary magazine 1 having a plurality of bores 11 formed to inner diameters capable of having pellets 91 inserted into them, with the magazine 1 being formed from a material that can pass magnetic force, and with a magnet 10 being provided in the center of the magazine 1. In this way, it is possible to repeatedly fire two different types of bullets, namely BB bullets 90 and pellets 91, using one magazine 1 of one airgun G.Type: ApplicationFiled: May 28, 2003Publication date: December 2, 2004Applicant: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Patent number: 6688298Abstract: A magazine for an air gun of this invention can be freely attached to and detached from an air gun body using a magazine body, and has a plurality of pellet holders capable of being loaded with one pellet at a time. The plurality of pellet holders move orbitally about a pellet holder path and the pellets can be fed one at a time from the pellet holders towards a rotary sub chamber positioned below. With the air gun of this invention, the direction of the rotary sub chamber can be changed by shifting a rotary sub chamber positioned below the magazine, a trans link and a bolt forwards and backwards, so that the direction of single pellets dropping from the magazine can be changed by ninety degrees for feeding into the barrel. The magazine conveyor link is also interlocked so as to move to the front and rear in unison with movement to the front and rear of the trans link.Type: GrantFiled: January 2, 2003Date of Patent: February 10, 2004Assignee: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Patent number: 6666203Abstract: A magazine for an air gun of this invention can be freely attached to and detached from an air gun body using a magazine body, and has a plurality of pellet holders capable of being loaded with one pellet at a time. The plurality of pellet holders move orbitally about a pellet holder path and the pellets can be fed one at a time from the pellet holders towards a rotary sub chamber positioned below. With the air gun of this invention, the direction of the rotary sub chamber can be changed by shifting a rotary sub chamber positioned below the magazine, a trans link and a bolt forwards and backwards, so that the direction of single pellets dropping from the magazine can be changed by ninety degrees for feeding into the barrel. The magazine conveyor link is also interlocked so as to move to the front and rear in unison with movement to the front and rear of the trans link.Type: GrantFiled: January 2, 2003Date of Patent: December 23, 2003Assignee: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Publication number: 20030188730Abstract: A magazine for an air gun of this invention can be freely attached to and detached from an air gun body using a magazine body, and has a plurality of pellet holders capable of being loaded with one pellet at a time. The plurality of pellet holders move orbitally about a pellet holder path and the pellets can be fed one at a time from the pellet holders towards a rotary sub chamber positioned below.Type: ApplicationFiled: January 2, 2003Publication date: October 9, 2003Applicant: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Publication number: 20030188729Abstract: A magazine for an air gun of this invention can be freely attached to and detached from an air gun body using a magazine body, and has a plurality of pellet holders capable of being loaded with one pellet at a time. The plurality of pellet holders move orbitally about a pellet holder path and the pellets can be fed one at a time from the pellet holders towards a rotary sub chamber positioned below.Type: ApplicationFiled: January 2, 2003Publication date: October 9, 2003Applicant: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Patent number: 6570828Abstract: A skew of an optical pickup device can be adjusted by a movable-side member itself which holds thereon an objective lens. A holder which holds an objective lens is supported by four spring wires such that it can be moved in the focusing direction and the tracking direction of an optical disk. A center of a magnetic circuit which drives the holder is shifted in the outer peripheral side relative to the optical disk. Elastic force of the spring wires of the inner peripheral side is suppressed by increasing the amount of a gel material bonded to the spring wires located on the inner peripheral side of the optical disk as a damping material as compared with the amount of the gel material bonded to the spring wires located on the outer peripheral side.Type: GrantFiled: April 27, 2001Date of Patent: May 27, 2003Assignee: Sony CorporationInventors: Nobuyasu Kikuchi, Akio Yamakawa, Yusaku Seki, Tetsuo Maeda, Yutaka Sugawara
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Patent number: 6530368Abstract: A magazine for an air gun of this invention can be freely attached to and detached from an air gun body using a magazine body, and has a plurality of pellet holders capable of being loaded with one pellet at a time. The plurality of pellet holders move orbitally about a pellet holder path and the pellets can be fed one at a time from the pellet holders towards a rotary sub chamber positioned below. With the air gun of this invention, the direction of the rotary sub chamber can be changed by shifting a rotary sub chamber positioned below the magazine, a trans link and a bolt forwards and backwards, so that the direction of single pellets dropping from the magazine can be changed by ninety degrees for feeding into the barrel. The magazine conveyor link is also interlocked so as to move to the front and rear in unison with movement to the front and rear of the trans link.Type: GrantFiled: April 5, 2002Date of Patent: March 11, 2003Assignee: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Patent number: RE39805Abstract: This invention can make a valve compact in function and improve using efficiency of a compressed gas and make an air gun compact. To achieve this object, an air gun is constructed by a hit pin arranged in a cylinder portion, a valve body arranged within a hollow portion of the cylinder portion and having a bullet supplying nozzle chamber and a valve pin chamber, a gas inlet port opened to a sleeve-shaped circumferential face of the valve pin chamber, a bullet supplying nozzle arranged within the bullet supplying nozzle chamber, and a valve pin arranged within the valve pin chamber. The hit pin is pressed on a muzzle side and the valve pin is slid to the muzzle side so that an airtight state between a valve pin flange portion and a side face of the valve pin chamber on its gun rear end side is released. A compressed gas is supplied to a nozzle chamber side opening and a valve pin chamber side opening from a clearance between the valve pin flange portion and the gun rear end side face of the valve pin chamber.Type: GrantFiled: February 16, 2006Date of Patent: September 4, 2007Assignee: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda, Yuichi Toyoda