Patents Assigned to Meiji University Legal Person
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Publication number: 20100227048Abstract: Spinel-type ferrimagnetic particles having a composition represented by the formula: (MO).n/2(Fe2O3) where M is a divalent metal and n is a molar ratio of Fe to M (n=Fe/M) which is from more than 2.05 to less than 2.5 (2.05<n<2.5). They contain a superparamagnetic component in an amount of not more than 2% by mass, has an average particle diameter of 5 to 30 nm. The particles are respectively coated on surface with a hydroxide of at least one metal Si, Al, P and Zn in an amount of not more than 10% by mass, calculated as the metal. The spinel-type ferrimagnetic particles can exhibit a high coercive force irrespective of fine particles, and are excellent in dispersibility and chemical stability, as well as the magnetic recording medium for high-density recording can exhibit not only excellent frequency characteristics and high output characteristics, but also an excellent weather resistance and a high reliability.Type: ApplicationFiled: May 13, 2010Publication date: September 9, 2010Applicant: MEIJI UNIVERSITY LEGAL PERSONInventors: Hiroshi Yamamoto, Tsutomu Katamoto
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Publication number: 20100176034Abstract: A powder separation apparatus and method are provided so as to be able to accurately separate a raw powder material. This apparatus has a container into which a raw powder material containing a heavy powder and a light powder, and medium particles having a larger particle size than the raw powder material, are supplied; a container shaker for shaking the container; and a gas blower unit for blowing a gas into an interior of a medium particle layer in the container to discharge the light powder with the gas to the outside of the medium particle layer.Type: ApplicationFiled: February 8, 2007Publication date: July 15, 2010Applicant: MEIJI UNIVERSITY LEGAL PERSONInventors: Masafumi Kikuchi, Akio Koyama, Kichinosuke Amimoto, Takao Nishishita, Yutaka Akahoshi, Kazuko Ito
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Patent number: 7655086Abstract: An object of the present invention is to impart excellent gloss to an Urushi coating, improve drying properties, improve light fastness, and provide an environmentally responsible high-class lacquered article such as a ‘Byakudan’ (white sandalwood) coating or a ‘Tamamushi’ (iridescent) coating. This object has been accomplished by an Urushi lacquer comprising a naturally occurring raw Urushi or a refined Urushi, and metal colloid particles. As the metal colloid particles, precious metal colloid particles may preferably be used.Type: GrantFiled: February 8, 2005Date of Patent: February 2, 2010Assignee: Meiji University Legal PersonInventors: Tetsuo Miyakoshi, Kisuke Nagase, Yukiko Nagase, legal representative
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Publication number: 20090050720Abstract: There is provided a powderizing apparatus and a method capable of powderizing target objects effectively. The powderizing apparatus includes a cylindrical container extending in a horizontal direction, a rotary shaft disposed along the axis of the cylindrical container, a plurality of rods disposed in parallel with respect to the rotary shaft in a position close to an inner wall of the cylindrical container and away from the rotary shaft, rod-fixing members for fixing the rods to the rotary shaft and hammering members provided on the respective rods.Type: ApplicationFiled: February 23, 2007Publication date: February 26, 2009Applicant: Meiji University Legal PersonInventors: Masafumi Kikuchi, Akio Koyama, Kichinosuke Amimoto, Takao Nishishita, Yutaka Akahoshi, Kazuko Ito
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Patent number: 7399523Abstract: Provided is a magnetic material with excellent magnetic properties to be used for recording media, which contains small ratio of superparamagnetic fine particles while maintaining high coercivity. It is spinel ferrimagnetic particles, a composition equation of which when prepared is (CoO)0.5-x(NiO)0.5-y(MO)x+y.n/2(Fe2O3) (M is a bivalent metal except Co and Ni) and a value of n (molar ratio)=Fe/(Co+Ni+Zn) is 2.0<n<3.0, which is larger than stoichiometric amount (n=2) of a spinel ferrite and less than that of 1.5 times, and values of x, y satisfy 0?x<0.5, 0?y<0.5, 0<x+y<0.5, wherein, also, superparamagnetic fine particles contained in the spinel ferrimagnetic particles is 5% by mass or less.Type: GrantFiled: October 16, 2003Date of Patent: July 15, 2008Assignee: Meiji University Legal PersonInventors: Hiroshi Yamamoto, Natsuki Wakamura, Naoki Yoshida
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Publication number: 20070082088Abstract: The present invention provides a novel fermented food obtainable by fermenting sprouted brown rice, or sprouted brown rice and soybeans, with a Rhizopus mold. Like the conventional tempeh (soybean tempeh), the fermented food of the present invention does not have a strong smell or stickiness, and it retains its cake-like shape even when sliced. In addition to these properties, the fermented food of the invention has nutrients and a fine taste which the conventional tempeh does not have. Therefore, the fermented food of the invention is very useful as a novel food.Type: ApplicationFiled: December 9, 2004Publication date: April 12, 2007Applicant: Meiji University Legal PersonInventors: Eihachiro Kato, Michiko Takita
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Publication number: 20060188755Abstract: Spinel-type ferrimagnetic particles having a composition represented by the formula: (MO).n/2(Fe2O3) wherein M is a divalent metal; and n is a molar ratio of Fe to M (n=Fe/M) which is from more than 2.05 to less than 2.5 (2.05<n<2.5), containing a superparamagnetic component in an amount of not more than 2% by mass, and having an average particle diameter of 5 to 30 nm, said spinel-type ferrimagnetic particles being respectively coated on surface thereof with a hydroxide of at least one metal selected from the group consisting of Si, Al, P and Zn in an amount of not more than 10% by mass, calculated as the metal, as well as a magnetic recording medium containing the spinel-type ferrimagnetic particles.Type: ApplicationFiled: February 23, 2005Publication date: August 24, 2006Applicant: MEIJI UNIVERSITY LEGAL PERSONInventors: Hiroshi Yamamoto, Tsutomu Katamoto
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Patent number: 6764608Abstract: Fine spinel-type ferrimagnetic particles of the present invention have a composition represented by the formula (I): (CoO)x(NiO)y.n/2Fe2O3 (I) wherein 2.0<n=Fe/(Co+Ni)<3.0, 0.4≦x≦0.9, 0.1≦y≦0.6 and x+y=1. The fine spinel-type ferrimagnetic particles exhibit a high coercive force in spite of fine particles.Type: GrantFiled: January 29, 2003Date of Patent: July 20, 2004Assignee: Meiji University Legal PersonInventors: Hiroshi Yamamoto, Yukihiro Nissato
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Patent number: 6496115Abstract: This invention provides a system for analyzing baby cries capable of diagnosing a cause of cry of a baby based on a cry from the baby. A microphone (1) picks up a cry from a baby as an audio signal. At a certain sampling frequency, an A/D converter (2) samples the audio signal received by the microphone (1) to A/D convert it. An audio analyzer (3) analyzes the audio signal samples by the A/D converter (2) and computes a characteristic quantity based on a frequency spectrum. A cause-of-cry assumption unit (4) assumes a cause of cry based on the characteristic quantity of the audio signal derived at the audio analyzer (3). Finally, an assumed result display (5) displays the assumed result from the cause-of-cry assumption unit (4).Type: GrantFiled: September 27, 2001Date of Patent: December 17, 2002Assignee: Meiji University Legal PersonInventor: Kaoru Arakawa
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Publication number: 20020135485Abstract: This invention provides a system for analyzing baby cries capable of diagnosing a cause of cry of a baby based on a cry from the baby. A microphone (1) picks up a cry from a baby as an audio signal. At a certain sampling frequency, an A/D converter (2) samples the audio signal received by the microphone (1) to A/D convert it. An audio analyzer (3) analyzes the audio signal sampled by the A/D converter (2) and computes a characteristic quantity based on a frequency spectrum. A cause-of-cry assumption unit (4) assumes a cause of cry based on the characteristic quantity of the audio signal derived at the audio analyzer (3). Finally, an assumed result display (5) displays the assumed result from the cause-of-cry assumption unit (4).Type: ApplicationFiled: September 27, 2001Publication date: September 26, 2002Applicant: Meiji University Legal PersonInventor: Kaoru Arakawa