Patents Assigned to FPS, Inc.
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Publication number: 20220221450Abstract: Provided is a temperature-responsive fluorescent particle comprising at least one type of fluorescent molecule in a molecular assembly comprising and constituted by at least one type of amphiphilic molecule, wherein the fluorescent molecule emits fluorescence when the molecular assembly is in the liquid phase and it is quenched when the molecular assembly is in the solid phase, due to a temperature-responsive solid-liquid phase transition, so that fluorescence emission and quenching of the fluorescent molecule are reversibly switched in a temperature responsive manner. Also provided is a temperature-responsive fluorescent probe comprising the temperature-responsive fluorescent particle the surface of which is modified with a biomolecule recognition element, and methods for detecting and quantitatively determining a biomolecule with the temperature-responsive fluorescent probe.Type: ApplicationFiled: May 29, 2020Publication date: July 14, 2022Applicants: FPS INC., NANOTHETA INC.Inventors: Shinji TAKEOKA, Keitaro SOU, Runkai HU, Chi-Lik Ken LEE, Li Yan CHAN
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Patent number: 9584922Abstract: A hybrid speaker is provided. The hybrid speaker can include first magnets, second magnets, a yoke that accommodates the first and second magnets, a diaphragm, voice coils fixed at one face of the diaphragm, a frame, and a plate spring resiliently supporting the yoke at the frame. The first magnets can be arranged at predetermined intervals such that south poles or north poles thereof are oriented to the same side. The second magnets can have smaller volumes than the first magnets and be arranged singly or plurally between the first magnets their magnetic poles oriented the opposite those of the first magnets. The voice coils can be disposed so as to cross magnetic circuits between the first magnets and the yoke. The diaphragm can be fixed to the frame at periphery portions of the face at the side of the diaphragm at which the voice coils are fixed.Type: GrantFiled: May 17, 2013Date of Patent: February 28, 2017Assignee: FPS INC.Inventors: Masashi Hori, Tohru Nakabayashi, Yasuo Enokido
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Patent number: 8548190Abstract: A composite speaker is provided capable of obtaining larger sound output than that of a conventional flat panel speaker and flat speaker when input with an audio signal of the same strength.Type: GrantFiled: June 4, 2010Date of Patent: October 1, 2013Assignee: FPS Inc.Inventors: Masashi Hori, Kuniyuki Kobayashi, Hiromi Saotome, Masahiro Iwata
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Patent number: 8542862Abstract: A flat acoustic transducer (100) includes a permanent magnet (10) and a magnetic member (20), which are arranged adjacent to each other with a predetermined interval, a flat vibrating membrane (30), provided facing the permanent magnet (10) and the magnetic member (20), and at least one coil (40), fixed to the vibrating membrane (30). In the flat acoustic transducer (100), an electrical signal is applied to the coil (40), to obtain vibration force (F) on the vibrating membrane (30) by way of a magnetic flux ? generated between a magnetic pole face (12) of the permanent magnet (10) and the magnetic member (20), a step (50) is provided between the magnetic pole face (12) and the upper face (22) of the magnetic member (20), while at least part of a winding (42) of the coil (40) at the time of no application of an electrical signal is arranged inside the step (50).Type: GrantFiled: November 30, 2009Date of Patent: September 24, 2013Assignee: FPS Inc.Inventors: Fumihito Meguro, Tomomi Nakatsuka, Masashi Hori, Hiromi Sotome, Masahiro Iwata, Kuniyuki Kobayashi
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Publication number: 20120263338Abstract: A composite speaker is provided capable of obtaining larger sound output than that of a conventional flat panel speaker and flat speaker when input with an audio signal of the same strength.Type: ApplicationFiled: June 4, 2010Publication date: October 18, 2012Applicant: C/O FPS INC.Inventors: Masashi Hori, Kuniyuki Kobayashi, Hiromi Saotome, Masahiro Iwata
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Publication number: 20110235848Abstract: A flat acoustic transducer (100) includes a permanent magnet (10) and a magnetic member (20), which are arranged adjacent to each other with a predetermined interval, a flat vibrating membrane (30), provided facing the permanent magnet (10) and the magnetic member (20), and at least one coil (40), fixed to the vibrating membrane (30). In the flat acoustic transducer (100), an electrical signal is applied to the coil (40), to obtain vibration force (F) on the vibrating membrane (30) by way of a magnetic flux ? generated between a magnetic pole face (12) of the permanent magnet (10) and the magnetic member (20), a step (50) is provided between the magnetic pole face (12) and the upper face (22) of the magnetic member (20), while at least part of a winding (42) of the coil (40) at the time of no application of an electrical signal is arranged inside the step (50).Type: ApplicationFiled: November 30, 2009Publication date: September 29, 2011Applicants: SUMIDA CORPORATION, FPS INC.Inventors: Fumihito Meguro, Tomomi Nakatsuka, Masashi Hori, Hiromi Sotome, Masahiro Iwata, Kuniyuki Kobayashi
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Patent number: 7174024Abstract: A flat acoustic conversion device includes two magnets disposed so that their magnetic poles face upward arid are adjacent to or in contact with one another, and the magnetic pole faces of different polarities arc disposed alternately; a vibrating member disposed on the top surface of the yoke; coil pairs wound in helical form and disposed at front and reverse surfaces of the vibrating membrane; such that magnetic flux traveling in a direction substantially parallel to a surface of the vibrating membrane becomes a maximum, and interlinks with the coil pairs. When current is supplied to the coils, a direction of force which the current receives from a magnetic field is substantially orthogonal to the surface of the vibrating membrane, and force in a direction along the surface of the vibrating membrane becomes extremely low. Thus, noise components can be reduced such that sound quality can be improved.Type: GrantFiled: June 9, 2000Date of Patent: February 6, 2007Assignee: FPS, Inc.Inventors: Takahisa Suzuki, Masashi Hori, Kunihiko Ohbayashi
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Patent number: 6963654Abstract: A first conductor and a second conductor are provided at a diaphragm. The first and second conductors intersect magnetic force lines between north poles and south poles of permanent magnets M which are adjacent to one another. When electricity passes through the conductors, a direction in which a force from the magnetic field acts on the current is substantially orthogonal to a surface of the diaphragm. Therefore, the diaphragm can be oscillated in the direction orthogonal to the diaphragm surface. The conductors have widths of from 1000 ?m to 2000 ?m. Therefore, relative errors in the widths caused by etching can be greatly reduced compared to the prior art, and etching is easier. Moreover, the conductors are arranged in a zigzag pattern. Because the conductors do not have a coil form, a large number of through-holes is not required as in conventional products.Type: GrantFiled: September 27, 2002Date of Patent: November 8, 2005Assignee: FPS Inc.Inventors: Hiromi Sotme, Toshiiku Miyazaki
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Patent number: 6593847Abstract: This invention provides a planar acoustic converting apparatus including a support having a flat plate portion, a diaphragm which has an insulating base film having a liquid crystalline polymer film and being opposed to the flat plate portion of the support and at least one spiral coil provided on one major surface or both major surfaces of the insulating base film, at least one permanent magnet supported by the support and opposing a magnetic pole to the diaphragm, and a holding portion provided to the support and holding the diaphragm such that the diaphragm can vibrate and is positioned apart from the at least one permanent magnet.Type: GrantFiled: May 10, 2001Date of Patent: July 15, 2003Assignees: The Furukawa Electric Co., Ltd., FPS, Inc.Inventors: Toshiiku Miyazaki, Masashi Hori, Takeshi Nishimura, Kenji Iizuka, Masayuki Ishiwa
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Patent number: 6480614Abstract: Permanent magnets m18, m28 and m38 each of which is formed in a flat and rectangular shape are disposed on a yoke 20 with the magnetic pole surfaces facing upwardly so that the magnetic pole surfaces whose polarities are different are disposed alternately. A vibrating diaphragm 26 is disposed on the top surface of the yoke 20 so as to be in parallel with the magnetic pole surfaces of the permanent magnets. Pairs of coils L18, L28 and L38 which are wound in a swirled shape and are disposed at the top and rear surfaces of the vibrating diaphragm are disposed on the vibrating diaphragm 26 so as to correspond to the permanent magnets m28 and m38, respectively. Each of the pairs of coils L18, L28 and L38 is wound in a swirled shape so as to be substantially analogous with the external edge of the magnetic pole surface of each of the permanent magnets m18, m28 and m38.Type: GrantFiled: December 6, 1999Date of Patent: November 12, 2002Assignee: FPS, Inc.Inventors: Sakuzo Denda, Toshiiku Miyazaki
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Patent number: 6430518Abstract: A data acquisition system senses current and voltage from a common electrical circuit supplying a power to load branch circuits containing loads that undergo changes in load condition, such as starting and stopping. Transmitters connected to the load branch circuits identify the loads that undergo load condition changes. A data processor receives information from both the sensors and the transmitters to link the sensed current and voltage information from the common electrical circuit to the particular loads that undergo changes in load condition.Type: GrantFiled: August 11, 1999Date of Patent: August 6, 2002Assignee: FPS, Inc.Inventor: Richard M. Roche
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Patent number: 6244158Abstract: Directional control valves are arranged with restrictable center passageways connected in series to a fixed displacement pump and with restrictable power and exhaust passageways straddling loads connected in parallel to the same fixed displacement pump. Pressure responsive valves located between the loads and the restrictable exhaust passageways reduce interactions between the loads. Another pressure responsive valve located between the fixed displacement pump and the restrictable center passageways maintains an appropriate division of flow between the restrictable center passageways and the restrictable power and exhaust passageways.Type: GrantFiled: January 5, 1999Date of Patent: June 12, 2001Assignee: FPS, Inc.Inventor: Richard M. Roche