Patents Assigned to Waseda University
-
Patent number: 9012901Abstract: A photoelectric conversion element having high photovoltaic conversion efficiency is provided. The photoelectric conversion element includes a first electrode, a second electrode arranged opposite to the first electrode, and an electron transport layer provided on a face of the first electrode, and the face is opposite to the second electrode. The photoelectric conversion element further includes a photosensitizer supported on the electron transport layer and a hole transport layer interposed between the first electrode and the second electrode. The electron transport layer contains a perylene imide derivative of [Chemical Formula 1].Type: GrantFiled: March 5, 2012Date of Patent: April 21, 2015Assignees: Panasonic Corporation, Waseda UniversityInventors: Michio Suzuka, Takashi Sekiguchi, Naoki Hayashi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato
-
Patent number: 8952372Abstract: To provide a photoelectric element A including a first electrode 2, a second electrode 3 arranged opposite to the first electrode 2, an electron transport layer 1 provided on a face of the first electrode 2, the face being opposite to the second electrode 3, a photosensitizer 5 supported on the electron transport layer 1, and a hole transport layer 4 interposed between the first electrode 2 and the second electrode 3. The electron transport layer 1 includes a filled part 8 containing an organic molecule.Type: GrantFiled: December 12, 2012Date of Patent: February 10, 2015Assignees: Panasonic Corporation, Waseda UniversityInventors: Takashi Sekiguchi, Michio Suzuka, Naoki Hayashi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Naoki Sano
-
Patent number: 8916197Abstract: The present invention pertains to a bone marrow-directing drug delivery material that includes at least one fine particle, wherein the fine particle includes an anionic moiety on a surface of the particle. Also disclosed are uses of the material set forth herein for the prevention, treatment, or diagnosis of a disease of bone, cartilage, bone marrow, or a joint. Also disclosed are methods of preventing, treating, or diagnosing a disease of bone, cartilage, bone marrow, or a joint in a subject, involving administering to the subject a pharmaceutically effective amount of the material of the present invention.Type: GrantFiled: June 5, 2006Date of Patent: December 23, 2014Assignees: The Board of Regents of the University of Texas System, Waseda UniversityInventors: Keitaro Sou, Shinji Takeoka, Eishun Tsuchida, Beth A. Goins, William T. Phillips
-
Patent number: 8900524Abstract: 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: GrantFiled: March 17, 2009Date of Patent: December 2, 2014Assignee: Waseda UniversityInventors: Masahiro Yanagisawa, Takuya Nakanishi, Naonobu Shimamoto, Mikiko Saito, Tetsuya Osaka
-
Patent number: 8899024Abstract: An engine exhaust purification device comprises: a selective reduction type NOx catalyst; an oxidation catalyst disposed on an upstream side of the NOx catalyst; a reducing agent adding device which adds an NOx reducing agent to an exhaust gas of an engine; a control device which controls the reducing agent adding device; and an NO2 ratio calculation device which estimates an NO2 ratio of the exhaust gas flowing into the NOx catalyst. The NO2 ratio of the exhaust gas flowing into the NOx catalyst is calculated by a catalytic reaction model where the oxidation reaction of NO in the oxidation catalyst is numerically formulated, and the NO2 ratio is reflected to calculate an amount of ammonia adsorbed on the NOx catalyst by a catalytic reaction model where a chemical reaction concerned with the reduction of NOx in the NOx catalyst is numerically formulated.Type: GrantFiled: September 14, 2012Date of Patent: December 2, 2014Assignees: UD Trucks Corporation, Waseda UniversityInventors: Nobuhiko Masaki, Kiminobu Hirata, Jin Kusaka, Hideaki Kato, Yasumasa Notake
-
Patent number: 8895975Abstract: Provided is a photoelectric element that includes an electron transport layer having excellent electron transport properties and a sufficiently large reaction interface and has low resistance loss and excellent conversion efficiency between light and electricity. The photoelectric element includes a first electrode 3, a second electrode 4, an electron transport layer 1 and a hole transport layer 5 interposed between the first electrode 3 and the second electrode 4, an electrolyte solution, and a sensitizing dye. The electron transport layer 1 includes an organic compound having an oxidation-reduction site capable of repeated oxidation-reduction. The electrolyte solution serves to stabilize a reduction state of the oxidation-reduction site. The organic compound and the electrolyte solution form a gel layer 2. The sensitizing dye is provided in contact with the electron transport layer 1.Type: GrantFiled: March 5, 2012Date of Patent: November 25, 2014Assignees: Panasonic Corporation, Waseda UniversityInventors: Naoki Hayashi, Michio Suzuka, Takashi Sekiguchi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Naoki Sano
-
Patent number: 8841550Abstract: A photoelectric element provided with an electron transport layer having excellent electron transport property and sufficiently wide reaction interface, and that has excellent conversion efficiency. The photoelectric element has an electron transport layer 3 and a hole transport layer 4 sandwiched between a pair of electrodes 2 and 5. The electron transport layer 3 is formed of an organic compound having a redox moiety capable of being oxidized and reduced repeatedly. The organic compound contains an electrolyte solution which stabilizes the reduced state of the redox moiety, and forms a gel layer 6 containing a sensitizing dye.Type: GrantFiled: June 16, 2010Date of Patent: September 23, 2014Assignees: Panasonic Corporation, Waseda UniversityInventors: Takashi Sekiguchi, Mitsuo Yaguchi, Takeyuki Yamaki, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Michio Suzuka, Satoko Kambe
-
Patent number: 8828349Abstract: A substrate for growing carbon nanotubes capable of elongating single-walled carbon nanotubes of an average diameter of less than 2 nm is provided. The substrate for growing carbon nanotubes 1 is equipped with a reaction prevention layer 3 formed on a base material 2, a catalyst material layer 4 formed on the reaction prevention layer 3, a dispersion layer 5 formed on the catalyst material layer 4, and a dispersion promotion layer 6 formed on the dispersion layer 5.Type: GrantFiled: March 7, 2012Date of Patent: September 9, 2014Assignees: Honda Motor Co., Ltd., Waseda UniversityInventors: Toshiyuki Ohashi, Toshio Tokune, Masahiro Ota, Hidefumi Nikawa, Hiroshi Kawarada, Takumi Ochiai
-
Patent number: 8815168Abstract: A carbon nanotube synthesizing apparatus in which the state of generated plasma can be stabilized is provided. A carbon nanotube synthesizing apparatus 1 comprises a chamber 2, an antenna 3 including a tip 3a, a microwave conductor 4, a gas introducing unit 5, a gas discharging unit 6, a substrate holding unit 7, and a heating unit 8. The shape of the inner wall of the chamber 2 is symmetrical with respect to the tip 3a of the antenna 3.Type: GrantFiled: March 9, 2013Date of Patent: August 26, 2014Assignees: Honda Motor Co., Ltd., Waseda UniversityInventors: Hiroshi Kawarada, Toshiyuki Ohashi, Masahiro Ohta, Ryogo Kato, Toshio Tokune, Hidefumi Nikawa
-
Patent number: 8808812Abstract: Disclosed is a method capable of accelerating the growth of oriented carbon nanotubes when manufacturing the oriented carbon nanotubes by a plasma CVD. Under the circulation of a gas which is the raw material of the carbon nanotubes, plasma is generated by an antenna (6) provided in a depressurized treatment chamber (2), and substrates (9, 15) provided with a reaction prevention layer and a catalyst material layer which are formed on a base material are held at a distance, to which a radical can reach and an attack of an ion generated as a by-product of the radical can be avoided, from a plasma generation area (7). The tip (6a) of the antenna (6) can be controlled so as to match with the position of the anti-node of a stationary wave (27) of microwaves.Type: GrantFiled: August 30, 2010Date of Patent: August 19, 2014Assignees: Honda Motor Co., Ltd., Waseda UniversityInventors: Hiroshi Kawarada, Ryogo Kato, Toshiyuki Ohashi, Toshio Tokune, Hidefumi Nikawa
-
Patent number: 8812880Abstract: 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: January 11, 2010Date of Patent: August 19, 2014Assignee: Waseda UniversityInventors: Hironori Kasahara, Keiji Kimura, Jun Shirako, Masaki Ito, Hiroaki Shikano
-
Patent number: 8784931Abstract: A method of manufacturing ULSI wiring in which wiring layers are separately formed via a diffusion prevention layer and an insulating interlayer portion made of SiO2. The method comprises the steps of treating, with a silane compound, a SiO2 surface of the insulating interlayer portion on which the diffusion layer is to be formed, performing catalyzation with an aqueous solution containing a palladium compound, forming the diffusion prevention layer by electroless plating, and then forming the wiring layer on this diffusion prevention layer. A capping layer may be formed on the wiring layer by electroless plating. Consequently, a diffusion prevention layer having good adhesive properties can be formed through a simple wet process, and, the wiring layer can directly be formed on this diffusion prevention layer by a wet process. The capping layer can also be directly formed on the wiring layer by electroless plating.Type: GrantFiled: September 23, 2009Date of Patent: July 22, 2014Assignees: Waseda University, Renesas Electronics CorporationInventors: Kazuyoshi Ueno, Tetsuya Osaka, Nao Takano
-
Patent number: 8773224Abstract: A frequency multiplier includes an input circuit, an output circuit, and a resonance circuit. The input circuit is coupled to an input node and a middle node. The middle node provides a middle signal that has a signal component having the same frequency as an input signal that is provided to the input node. The middle signal further has an even number “n” multiple of the input signal frequency. The output circuit has a predetermined input impedance for the middle node. The resonance circuit includes an inductor that is coupled in series with a capacitor, where the capacitor is in a parallel connection to the middle node. The resonance circuit has a resonance frequency that is equal to a frequency of the input signal, and such resonance circuit also has an output impedance that matches with the predetermined input impedance of the output circuit.Type: GrantFiled: November 29, 2011Date of Patent: July 8, 2014Assignees: DENSO CORPORATION, Waseda UniversityInventors: Toshihiko Yoshimasu, Takayuki Shibata
-
Patent number: 8747553Abstract: A method of growing a p-type thin film of ?-Ga2O3 includes preparing a substrate including a ?-Ga2O3 single crystal, and growing a p-type thin film of ?-Ga2O3 on the substrate. The p-type thin film is grown in a manner that Ga in the thin film is replaced by a p-type dopant selected from H, Li, Na, K, Rb, Cs, Fr, Be, Mg, Ca, Sr, Ba, Ra, Mn, Fe, Co, Ni, Pd, Cu, Ag, Au, Zn, Cd, Hg, Tl, and Pb.Type: GrantFiled: August 13, 2012Date of Patent: June 10, 2014Assignee: Waseda UniversityInventors: Noboru Ichinose, Kiyoshi Shimamura, Kazuo Aoki, Encarnacion Antonia Garcia Villora
-
Patent number: 8748166Abstract: A system (10) for forming and maintaining a biological tissue by which a biological tissue can be artificially formed by culturing cells, which comprises a pulse pump (12), a circulation pathway (13) having such a circuit structure as allowing a liquid cell culture medium discharged from the pulse pump (12) to return into the pulse pump (12), and a cell culture section (14A) and a gas exchange section (14B) provided along the circulation pathway (13). The cell culture section (14A) holds a cell holder (H) in such a manner to form a first channel wherein the liquid cell culture medium flowing in the circulation pathway (13) passes through the cell holder (H) and returns into the circulation pathway (13) and a second channel wherein the liquid cell culture medium flowing in the circulation pathway (13) passes outside the cell holder (H) and returns into the circulation pathway thereby bringing about a difference in pressure between the liquid cell culture medium passing through the respective channels.Type: GrantFiled: October 10, 2008Date of Patent: June 10, 2014Assignee: Waseda UniversityInventors: Kiyotaka Iwasaki, Mitsuo Umezu, Koji Kojima, Charles Alfred Vacanti
-
Patent number: 8729532Abstract: The present invention provides a light-absorbing material capable of providing high photoelectric conversion efficiency when applied to a photoelectric conversion element. The light-absorbing material of the present invention has a structure represented by Formula (1) below: X—Y??(1) (wherein X represents a light-absorbing site, and Y represents a radical site that becomes a radical when in an oxidized state and/or when in a reduced state, and is capable of repeated oxidation-reduction).Type: GrantFiled: May 21, 2010Date of Patent: May 20, 2014Assignees: Panasonic Corporation, Waseda UniversityInventors: Takashi Sekiguchi, Hiroyuki Nishide, Michio Suzuka, Takeyuki Yamaki, Kenichi Oyaizu, Fumiaki Kato, Satoko Kambe
-
Patent number: 8722909Abstract: The object is to develop an antiprotozoal remedy having a novel mechanism of action. Provided is a compound represented by a chemical formula (1), a prodrug or a pharmaceutically acceptable salt thereof, wherein within the formula (1), R1 represents R10— of formula (4) or R20— of formula (5); R2 represents CHO—, etc.; R3 represents a hydrogen atom, CH3—C(?O)—, etc.; R4 represents a hydrogen atom, CH3—C(?O)—, etc.; each of R11 and R12 independently represents a hydrogen atom, a methyl group, etc.; R13 represents —CH2—, —CH(—OH)— or —C(?O)—; each of R21 and R22 independently represents a hydrogen atom, a methyl group, etc.; R23 represents —CH2—, —CH(—OH)— or —C(?0)—; and R24 represents a hydrogen atom, a hydroxyl group, a methyl group, etc.Type: GrantFiled: March 10, 2011Date of Patent: May 13, 2014Assignee: Waseda UniversityInventors: Yoichi Nakao, Shintaro Ishigami, Yasuyuki Goto, Shin-ichiro Kawazu, Noboru Inoue
-
Patent number: 8698392Abstract: This invention provides an organic electroluminescent element comprising two opposed electrodes connected to an external circuit for applying electrical energy, at least one of the electrodes being transparent or semitransparent, and provided between the electrodes, a plurality of luminescent units, for emitting light through recombination of holes with electrons, each comprising one or more organic layers, one of the organic layers being a luminescent layer, and a charge generation layer held between two of the plurality of luminescent units, characterized in that each two adjacent luminescent units in the plurality of luminescent units are partitioned by the charge generation layer, the charge generation layer comprises at least one metal or its compound (A) having a work function of not more than 3.0 eV and at least one compound (B) having a work function of not less than 4.0 eV, and in at least one of the plurality of luminescent units, the luminescent layer contains a polymeric luminescent material.Type: GrantFiled: February 6, 2007Date of Patent: April 15, 2014Assignees: Sumitomo Chemical Company, Limited, Waseda UniversityInventors: Yukio Furukawa, Teppei Yamada, Yoshinobu Ono
-
Patent number: 8674215Abstract: 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: GrantFiled: July 31, 2009Date of Patent: March 18, 2014Assignees: Panasonic Corporation, Waseda UniversityInventors: Takashi Sekiguchi, Hiroyuki Nishide, Kenichi Oyaizu, Fumiaki Kato, Akira Takahashi, Takeyuki Yamaki, Mitsuo Yaguchi, Michio Suzuka, Satoko Kambe
-
Patent number: 8672792Abstract: A first rotary shaft and a second rotary are rotatable around a rotation axis. The second rotary shaft has a cylindrical supporting part that covers an end section of the first rotary shaft. A case supports the first and second rotary shafts. A first rolling bearing is disposed between the first rotary shaft and the case and rotatably supports the first rotary shaft. A second rolling bearing is disposed between the supporting part and the first rotary shaft and supports the first rotary shaft and the second rotary shaft such that they are rotatable relative to each other. A transmission part of the second rotary shaft transmits to the second rolling bearing a preload force that pushes the second rotary shaft to the first rotary shaft side. A load-receiving part of the case receives the preload force transmitted from the second rolling bearing to the first rolling bearing.Type: GrantFiled: October 6, 2009Date of Patent: March 18, 2014Assignees: Mitsubishi Heavy Industries, Ltd., Waseda UniversityInventors: Yasuyoshi Tozaki, Takeshi Yoshimi, Hiroyuki Sonobe, Isamu Shiotsu, Susumu Matsumoto