Patents Assigned to Waseda University
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Patent number: 8148160Abstract: Molecular sensing of target molecules is performed by using an electrode for molecular sensing in which detecting molecules which can shift a surface potential of the electrode by an interaction with the target molecules are bound directly or via coupling molecules to surface hydroxyl groups on a conductive metal oxide. By this molecular sensing, specific target molecules can be detected selectively and stably with high accuracy. It is also possible to detect an enantiomer selectively and stably with high accuracy. The present invention can provide a chemical sensing system which is useful in fields such as medicines, environments and foods.Type: GrantFiled: December 4, 2008Date of Patent: April 3, 2012Assignee: Waseda UniversityInventors: Tetsuya Osaka, Mariko Matsunaga, Tsubasa Ueno
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Publication number: 20120040323Abstract: A blood vessel model for medical training not deforming with time and approximated to a real blood vessel without using any other tool when the blood vessel wall of the simulated blood vessel is incised or cut off. The blood vessel model 10 includes a simulated blood vessel 11 simulating a blood vessel and artificially fabricated and a base 12 supporting the simulated blood vessel 11. The simulated blood vessel 11 has a circumferentially exposed part and the other part buried in the base 12. The base 12 has a jointed part 24 disposed in a position below the simulated blood vessel 11 and formed by joining forming edges 26A, 26A of a cutout 26 extending along the simulated blood vessel 11 to impart a tensile stress in the diameter-increasing direction to the simulated blood vessel 11.Type: ApplicationFiled: March 20, 2009Publication date: February 16, 2012Applicant: WASEDA UNIVERSITYInventors: Young Kwang Park, Mitsuo Umezu
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Publication number: 20120031764Abstract: Disclosed is a microcrystalline-to-amorphous gold alloy-plated film having excellent electrical properties and excellent mechanical properties. Physical properties including both the advantageous properties of a crystalline structure and the advantageous properties of an amorphous structure can be obtained by allowing a microcrystalline phase and an amorphous phase to exist in a mixed state at a specific ratio. The average particle diameter of the microcrystals is 30 nm or smaller, the volume fraction of the microcrystals is 10 to 90%, the knoop hardness is Hk 180 or more, the specific resistivity is 200 ??-cm or less. In the film, hardness and abrasion resistance can be improved while maintaining a good specific resistivity value and chemical stability both inherent to gold at practically insignificant levels. Therefore, the film is useful as a material for connecting an electric or electronic component such as a connector and a relay.Type: ApplicationFiled: February 17, 2010Publication date: February 9, 2012Applicants: Kanto Kagaku Kabushiki Kaisha, Waseda UniversityInventors: Tetsuya Osaka, Yutaka Okinaka, Kazutaka Senda, Ryota Iwai, Masaru Kato
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Publication number: 20120034466Abstract: A thin film polymer structure obtained by the steps of: (a) causing polyfunctional molecules to adsorb to an area of an arbitrary shape in an interface between a substrate body and a liquid phase; (b) polymerizing and/or crosslinking the adsorbing polyfunctional molecules to form a polymer thin film; and (c) exfoliating the formed thin film from the substrate body.Type: ApplicationFiled: August 31, 2005Publication date: February 9, 2012Applicants: Oxygenix Co., Ltd., Shinji TAKEOKA, WASEDA UNIVERSITYInventors: Shinji Takeoka, Yosuke Okamura, Masanori Ohtsuka
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Patent number: 8108660Abstract: Each of processors has a barrier write register and a barrier read register. Each barrier write register is wired to each barrier read register by a dedicated wiring block. For example, a 1-bit barrier write register of a processor is connected, via the wiring block, to a first bit of each 8-bit barrier read register contained in the processors, and a 1-bit barrier write register of another processor is connected, via a wiring block, to a second bit of each 8-bit barrier read register contained in the processors. For example, a processor writes information to its own barrier write register, thereby notifying synchronization stand-by to the other processors and reads its own barrier read register, thereby recognizing whether the other processors are in synchronization stand-by or not. Therefore, a special dedicated instruction is not required along barrier synchronization processing, and the processing can be made at a high speed.Type: GrantFiled: January 22, 2009Date of Patent: January 31, 2012Assignees: Renesas Electronics Corporation, Waseda UniversityInventors: Hironori Kasahara, Keiji Kimura, Masayuki Ito, Tatsuya Kamei, Toshihiro Hattori
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Patent number: 8051412Abstract: Performance of a heterogeneous multiprocessor is reduced as much as possible within a short time without any awareness of parallelization matched with a configuration of the heterogeneous multiprocessor. In a heterogeneous multiprocessor system, tasks having parallelism are automatically extracted by a compiler, a portion to be efficiently processed by a dedicated processor is extracted from an input program being a processing target, and processing time is estimated. Thus, by arranging the tasks according to PU characteristics, scheduling for efficiently operating a plurality of PU's in parallel is carried out.Type: GrantFiled: March 12, 2007Date of Patent: November 1, 2011Assignee: Waseda UniversityInventors: Hironori Kasahara, Keiji Kimura, Hiroaki Shikano
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Patent number: 8043854Abstract: In the transplant of a living organism tissue, such as a heart valve, taken from an animal, etc. into a human body, a cell removing solution for removing original cells from the living organism tissue is provided with flow approximately equal to the bloodstream of transplant recipient living body, and the living organism tissue is placed in the flow so as to effect immersion of the living organism tissue in the cell removing solution. In the immersion, it is preferred that the living organism tissue placed in the cell removing solution, while being rotated, be irradiated with microwave. As a result, original cells can be removed from the living organism tissue uniformly and reliably, so that the biocompatibility of living organism tissue after transplant can be enhanced.Type: GrantFiled: May 12, 2004Date of Patent: October 25, 2011Assignees: Waseda University, Selfusion Inc.Inventors: Mitsuo Umezu, Kiyotaka Iwasaki, Shigeyuki Ozaki, Yuji Morimoto, Osamu Endo
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Publication number: 20110195277Abstract: A high density magnetic recording medium including aggregates of magnetic nanoparticles arranged stably and efficiently in demarcated sections in the surface of a substrate is manufactured by the steps of forming a plurality of parallel tracks in the surface of the substrate, forming a plurality of minute recesses serially at approximately equal intervals in each of the tracks, casting a liquid dispersion of magnetic nanoparticles into the minute recesses, and evaporating dispersing medium from the liquid dispersion, thereby forming an aggregate of magnetic nanoparticles in each of the minute recesses.Type: ApplicationFiled: December 14, 2010Publication date: August 11, 2011Applicants: WASEDA UNIVERSITY, SHOWA DENKO K.K.Inventors: Tetsuya Osaka, Atsushi Sugiyama, Takuma Hachisu, Shuichi Shoji, Jun Mizuno, Hiroshi Sakai
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Publication number: 20110178350Abstract: The object of the present invention is to provide the catalyst used in a process for preparation of alkenylaromatic compounds by dehydrogenating alkyl aromatic compounds by means of steam as a diluent, wherein the catalyst prevents the block and corrosion caused by the alkali metal component migrated from the catalyst, and the process for producing same, and the dehydrogenation method using it. The solid catalyst which has the high redox ability and comprises no alkali metal component migrated from the catalyst in the presence of steam with high temperature is used.Type: ApplicationFiled: September 22, 2008Publication date: July 21, 2011Applicants: WASEDA UNIVERSITY, SUED-CHEMIE CATALYSTS JAPAN, INC.Inventors: Eiichi Kikuchi, Yasushi Sekine, Yuji Mishima
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Patent number: 7983482Abstract: A matching technology for determining the similarity between two objects at high velocity with high precision. The matching method for comparing a set of feature points of two objects projected to an N-dimensional space and determining the similarity between the two objects, includes a mapping step of mapping the set to a one-dimensional space, a pairing step of creating a set of pairs of a feature point of first object that is the most approximate to a feature point of second object, a partial-set creating step of partly extracting the pairs in small order of the pair distance from the set of the pairs of the feature points and creating a partial set of the pairs of the feature points, an average-value calculating step, and a determining step of determining the similarity on the basis of an average value of the distance.Type: GrantFiled: May 11, 2007Date of Patent: July 19, 2011Assignees: Waseda UniversityInventors: Seiichiro Kamata, Kazuyuki Tsuneyoshi
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Patent number: 7974670Abstract: A method of processing skin surface observation measuring data which is able to address various sicknesses and reduce an error in sickness detection, and a measuring apparatus requiring no filter. The measuring apparatus an irradiator applying a white light to a biological surface as a sample, a detector detecting the spectra of the white light reflected off a plurality of positions on the biological surface, a plotter plotting the absorbances of the above spectra to a light spectrum multi-dimensional space, an analyzer subjecting data in the spectrum multi-dimension space obtained from the plurality of positions to multivariate analysis to determine the eigenvectors of at least first, second and third principal components, and a display projecting data at respective positions in respective eigenvector directions to display their magnitudes on a two-dimension display screen on a gray scale or in colors corresponding to the magnitudes; and a measuring method by the apparatus.Type: GrantFiled: February 22, 2005Date of Patent: July 5, 2011Assignee: Waseda UniversityInventors: Takayuki Souta, Katsuo Aizawa, Atsushi Nakamura, Satoshi Kageyama, Shinya Ohtsubo, Fumihiko Ichikawa
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Publication number: 20110146796Abstract: This invention aims to provide a photpelectrical device with a superior conversion efficiency, which comprises an electron transport layer giving a superior electron-transporting performance and a sufficiently large dimentional interface. The photoelectric device further comprises a pair of electrode and a hole transport layer with the electron transport layer and the hole transport layer being interposed between electrodes. The electron transport layer is made of an organic compound having a redox moiety capable of being oxidized and reduced repeatedly. The organic compound is included in a gel layer containing an electrolyte solution which stabilizes a reduction state of the redox moiety.Type: ApplicationFiled: July 31, 2009Publication date: June 23, 2011Applicants: Panasonic Electric Works Co., Ltd, Waseda UniversityInventors: Takashi Sekiguchi, Shingo Kambe, Satoko Kambe, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Akira Takahashi, Takeyuki Yamaki, Mitsuo Yaguchi, Michio Suzuka
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Publication number: 20110142252Abstract: In a source sound separator, first and second target sound predominant spectra are generated respectively by first and second processing operations for linear combination for emphasizing the target sound, using received sound signals of two microphones arrayed at a distance from each other. A target sound suppressed spectrum is generated by processing for linear combination for suppression of the target sound, using the two received sound signals. Further, a phase signal containing a larger amount of signal components of the target sound and exhibiting directivity in the direction of the target sound is generated by processing of linear combination, using the two received sound signals. The target sound and the interfering sound are separated from each other using the first and second target sound predominant spectra, the target sound suppressed spectrum, and the phase signal.Type: ApplicationFiled: December 10, 2010Publication date: June 16, 2011Applicants: OKI ELECTRIC INDUSTRY CO., LTD., WASEDA UNIVERSITYInventors: Makoto Morito, Takashi Yazu, Kei Yamada, Tetsunori Kobayashi, Kenzo Akagiri, Tetsuji Ogawa
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Publication number: 20110117531Abstract: Disclosed is a method whereby a narrowed part similar to an actual lesioned blood vessel can be easily obtained. A mold (10) comprises first and second molded members (16, 17) having inner spaces (29, 40, 57) passing through in the axial direction and an axial member (18) detachably inserted through the individual inner spaces (29, 40, 57) of the individual molded members (16, 17). The molded members (16, 17) have tapered front parts (27, 27) respectively. In the state of facing the front ends (20) of the tapered front parts (27) to each other and thus forming a concave (12), the axial member (18) is attached. A first material (75) made of a mixed material comprising calcium carbonate or the like and silicone or the like is applied to the concave (12). A second material (76) such as silicone is applied to the entire outer periphery of the mold (10). After hardening the materials (75, 76), the mold (10) is withdrawn by detaching the axial member (18) and dividing the concave (12).Type: ApplicationFiled: January 28, 2009Publication date: May 19, 2011Applicant: WASEDA UNIVERSITYInventors: Kiyotaka Iwasaki, Mitsuo Umezu, Takashi Tanaka
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Publication number: 20110080273Abstract: There are provided a sensation presenting system and a sensation presenting device which allow a user to perceive a desired tactual stimulation based on a virtual bodily pseudo image recognized through a visual sensation.Type: ApplicationFiled: June 12, 2009Publication date: April 7, 2011Applicant: Waseda UniversityInventors: Takashi Kawai, Hiroyuki Morikawa
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Publication number: 20110051142Abstract: There is provided a novel optical sensor utilizing a surface plasmon resonance technique which is capable of detecting a substance to be detected with high sensitivity independently of a wavelength of irradiated light and is capable of obtaining information, other than a refraction index, on the substance to be detected. At the center of a surface of a metallic film 2 which is formed on a substrate and has no aperture, a circular depression 4 with a diameter of 0.1 to 250 nm is formed and with the depression 4 defined as a center, a plurality of depressions 3 are concentrically formed at intervals of 450 to 530 nm.Type: ApplicationFiled: March 17, 2009Publication date: March 3, 2011Applicant: Waseda UniversityInventors: Masahiro Yanagisawa, Takuya Nakanishi, Naonobu Shimamoto, Mikiko Saito, Tetsuya Osaka
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Patent number: 7895453Abstract: Provided is a multiprocessor system and a compiler used in the system for automatically extracting tasks having parallelism from an input program to be processed, performing scheduling to efficiently operate processor units by arranging the tasks according to characteristics of the processor units, and generating codes for optimizing a system frequency and a power supply voltage by estimating a processing amount of the processor units.Type: GrantFiled: April 12, 2006Date of Patent: February 22, 2011Assignee: Waseda UniversityInventors: Hironori Kasahara, Keiji Kimura, Jun Shirako, Masaki Ito, Hiroaki Shikano
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Patent number: 7876596Abstract: A novel nonvolatile memory element, which can be manufactured by a simple and high yield process by using an organic material and has a high on/off ratio, and a method for manufacturing such nonvolatile memory element. A switching layer (14) made of an electrical insulating radical polymer is provided between an anode layer (12) and a cathode layer (16). Further, a hole injection transport layer (13) is provided between the switching layer (14) and the anode layer (12), and an electron injection transport layer (15), between the switching layer (14) and the cathode layer (16). An intermediate layer is provided between the switching layer and the adjacent layer. The radical polymer is preferably nitroxide radical polymer. The switching layer (14), the hole injection transport layer (13) and the electron injection transport layer (15) are formed by being stacked by a wet process.Type: GrantFiled: November 4, 2005Date of Patent: January 25, 2011Assignee: Waseda UniversityInventors: Hiroyuki Nishide, Kenji Honda, Yasunori Yonekuta, Takashi Kurata, Shigemoto Abe
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Publication number: 20110010155Abstract: It is an object of the invention to evaluate a tracheal intubation technique in consideration of various points to remember related to a tracheal intubation treatment. A tracheal intubation training apparatus (10) is provided with a model (14) which has an appearance modeled on the upper body portion of a human body and an evaluation means (15) which evaluates the tracheal intubation technique carried out to the model (14). The model (14) has pressure sensors (46, 57, 62, 66) which measure pressurizing force when a tracheal intubation device (12) touches respective sections (31, 32, 34, 36, 41, 63) modeled on sections from the inside of the mouth through to that of the trachea of a living body, position detection sensors (69, 76) which detect whether the tracheal intubation device (12) exists in the predetermined areas of the tracheal part (63) and an esophageal part (64), and angle sensors (79 to 81) which detect the postures of a head/face part (28A), a neck/chest part (28B), and a lower jaw part (31).Type: ApplicationFiled: September 30, 2008Publication date: January 13, 2011Applicants: WASEDA UNIVERSITY, KYOTO KAGAKU CO., LTD.Inventors: Atsuo Takanishi, Yohan Noh, Jorge Solis, Hiroyuki Ishii, Yu Ogura, Koji Nagahiro, Masanao Segawa, Akihiro Shimomura, Tamotsu Katayama, Kazuyuki Hatake
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Patent number: 7844058Abstract: A hearing aid device for processing an input sound signal via a microphone so as to output a sound signal from an earphone comprises a signal processing element, a couple of acoustic nerve excitation pattern calculation elements, a couple of acoustic filter shape memory elements, a comparison element, a correction processing element, etc. The couple of acoustic nerve excitation pattern calculation elements calculate acoustic nerve excitation patterns of a normal hearing person and a hearing impaired person based on an output signal of the signal processing element and acoustic filter shapes of the normal hearing person and the hearing impaired person which are stored in the couple of acoustic filter shape memory elements. Each of the acoustic nerve excitation patterns is compared via the comparison element.Type: GrantFiled: March 23, 2006Date of Patent: November 30, 2010Assignees: Rion Co., Ltd., Waseda UniversityInventors: Mikio Tohyama, Michiko Kazama, Yoshinori Takahashi, Kiyoaki Terada, Shinichi Sakamoto, Keisuke Watanuki, Takeshi Nakaichi