Patents by Inventor Shohei Nakamura
Shohei Nakamura 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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Patent number: 9400323Abstract: A passive radar device includes: a pulse-by-pulse range compression unit executing cross-correlation processing between received signals of a direct wave and scattered wave on each of pulses divided by a direct-wave reception unit and a scattered-wave reception unit, and calculating a pulse-by-pulse range profile; a block-by-block Doppler processing unit calculating a first Doppler frequency spectrum by executing pulse-direction Fourier transform in block units each grouping plural pulses; a Doppler frequency cell-associated range migration compensation unit compensating a range-direction movement amount with respect to the first Doppler frequency spectrum on a Doppler-frequency-cell-by-Doppler-frequency-cell basis and on a block-by-block basis; and a block-direction Doppler processing unit calculating a second Doppler frequency spectrum by executing block-direction Fourier transform on an output from the Doppler frequency cell-associated range migration compensation unit.Type: GrantFiled: February 18, 2011Date of Patent: July 26, 2016Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Kei Suwa, Tadashi Oshima, Shohei Nakamura, Toshio Wakayama
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Publication number: 20130321199Abstract: A passive radar device includes: a pulse-by-pulse range compression unit executing cross-correlation processing between received signals of a direct wave and scattered wave on each of pulses divided by a direct-wave reception unit and a scattered-wave reception unit, and calculating a pulse-by-pulse range profile; a block-by-block Doppler processing unit calculating a first Doppler frequency spectrum by executing pulse-direction Fourier transform in block units each grouping plural pulses; a Doppler frequency cell-associated range migration compensation unit compensating a range-direction movement amount with respect to the first Doppler frequency spectrum on a Doppler-frequency-cell-by-Doppler-frequency-cell basis and on a block-by-block basis; and a block-direction Doppler processing unit calculating a second Doppler frequency spectrum by executing block-direction Fourier transform on an output from the Doppler frequency cell-associated range migration compensation unit.Type: ApplicationFiled: February 18, 2011Publication date: December 5, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Kei Suwa, Tadashi Oshima, Shohei Nakamura, Toshio Wakayama
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Patent number: 8113718Abstract: It is an object of the present invention to provide a cage that can be used in a cryogenic-temperature environment or a vacuum without providing the cage with a complicated construction and without performing special treatment and a bearing using the cage. A cage made of resin has an annular main body having a plurality of pocket portions radially penetrating the main body; and a plurality of pocket members, provided on the annular main body, which hold rolling elements of a rolling bearing. The main body is a molding of a first resin composition consisting of a first resin and a solid lubricant mixed therewith; and at least a rolling element-retaining surface of each of the pocket members is made of a second resin composition containing fluorocarbon resin as a main component thereof. The molding of the first resin composition has a tensile strength of not less than 30 MPa and a heat-resistant temperature of not less than 200° C. The second resin composition is a fluorocarbon resin composition.Type: GrantFiled: March 7, 2007Date of Patent: February 14, 2012Assignee: NTN CorporationInventors: Takashi Ito, Shohei Nakamura, Masayuki Nozaki, Masaki Egami, Takuya Ishii, Toyohiko Ota, Akira Okayasu, Rei Mihara
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Patent number: 7563031Abstract: A rolling bearing includes an outer stationary ring, an inner rotating ring, and a plurality of rollers disposed between the inner and outer rings. An optical sensor is mounted on the outer ring. A computer receives the output of the optical sensor to calculate the revolving speed of the rollers from the number of rollers that pass the sensor per unit time, as detected by the optical sensor. The computer then calculates the time-integrated difference between the revolving speed of the rollers and the rotational speed of a rotary shaft on which the inner ring is mounted, as detected by a rotational sensor. Based on the thus obtained difference, it is possible to detect skidding of the rollers at an earlier stage.Type: GrantFiled: May 4, 2006Date of Patent: July 21, 2009Assignee: NTN CorporationInventor: Shohei Nakamura
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Patent number: 7525430Abstract: There is provided a machine component having an IC tag attached thereto, which can be controlled consistently from manufacture to disposal without the IC tag missed on the way. The machine component is embedded with the IC tag (110) made up of an IC chip having recorded thereon information unique to the relevant machine component and an antenna connected electrically with the IC chip.Type: GrantFiled: February 16, 2004Date of Patent: April 28, 2009Assignee: NTN CorporationInventors: Shohei Nakamura, Shouichi Hioki, Hiroyoshi Ito, Tooru Mayumi, Mitsuo Sasabe
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Publication number: 20090074339Abstract: It is an object of the present invention to provide a cage that can be used in a cryogenic-temperature environment or a vacuum without providing the cage with a complicated construction and without performing special treatment and a bearing using the cage. A cage made of resin has an annular main body having a plurality of pocket portions radially penetrating the main body; and a plurality of pocket members, provided on the annular main body, which hold rolling elements of a rolling bearing. The main body is a molding of a first resin composition consisting of a first resin and a solid lubricant mixed therewith; and at least a rolling element-retaining surface of each of the pocket members is made of a second resin composition containing fluorocarbon resin as a main component thereof. The molding of the first resin composition has a tensile strength of not less than 30 MPa and a heat-resistant temperature of not less than 200° C. The second resin composition is a fluorocarbon resin composition.Type: ApplicationFiled: March 7, 2007Publication date: March 19, 2009Inventors: Takashi Ito, Shohei Nakamura, Masayuki Nozaki, Masaki Egami, Takuya Ishii, Toyohiko Ota, Akira Okayasu, Rei Mihara
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Publication number: 20060257061Abstract: A rolling bearing includes an outer stationary ring, an inner rotating ring, and a plurality of rollers disposed between the inner and outer rings. An optical sensor is mounted on the outer ring. A computer receives the output of the optical sensor to calculate the revolving speed of the rollers from the number of rollers that pass the sensor per unit time, as detected by the optical sensor. The computer then calculates the time-integrated difference between the revolving speed of the rollers and the rotational speed of a rotary shaft on which the inner ring is mounted, as detected by a rotational sensor. Based on the thus obtained difference, it is possible to detect skidding of the rollers at an earlier stage.Type: ApplicationFiled: May 4, 2006Publication date: November 16, 2006Inventor: Shohei Nakamura
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Patent number: 7125236Abstract: Replicas are molded by curing a photo-curable liquid silicone rubber composition to form a transparent mother mold having a cavity corresponding to the outer contour of a master model, casting a photo-curable liquid resin into the mold cavity, and irradiating light to the liquid resin through the mold wall. Replicas can be fabricated by simple steps and within a short time.Type: GrantFiled: December 19, 2001Date of Patent: October 24, 2006Assignee: Shin - Etsu Chemical Co. Ltd.Inventors: Yasuhiko Matsuoka, Tarou Kita, Hironao Fujiki, Takafumi Sakamoto, Shohei Nakamura, Kousi Anai
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Publication number: 20060210208Abstract: A cryogenic, ultra high-speed rolling bearing comprises an inner ring 12 fitted onto a rotating shaft rotating at ultra-high speeds under cryogenic conditions, an outer ring 14 concentrically surrounding the inner ring with a space therebetween and fitted onto a fixed portion, a plurality of rolling elements 16 rotatably inserted in the space between the inner ring and the outer ring, and a retainer 20 located between the inner ring and the outer ring to hold the rolling elements at intervals therebetween. The retainer 20 comprises a retainer body 22 having a plurality of pocket holes 21 formed therethrough in a radial direction to contain the rolling elements at intervals therebetween, and a solid lubricant film 24 (pocket hole coating 24A and guideway coating 24B) provided on the inner surfaces of the plurality of pocket holes and a guideway contacting the inner or outer ring and having transfer properties and a low friction coefficient enough for cryogenic conditions.Type: ApplicationFiled: February 14, 2006Publication date: September 21, 2006Applicants: Ishikawajima-Harima Heavy Industries Co., Ltd., NTN Corporation, Nikken Coating Industry Co., Ltd.Inventors: Toyohiko Ota, Rei Mihara, Akira Okayasu, Shohei Nakamura, Sichao Chen
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Publication number: 20060170551Abstract: There is provided a machine component having an IC tag attached thereto, which can be controlled consistently from manufacture to disposal without the IC tag missed on the way. The machine component is embedded with the IC tag (110) made up of an IC chip having recorded thereon information unique to the relevant machine component and an antenna connected electrically with the IC chip.Type: ApplicationFiled: February 16, 2004Publication date: August 3, 2006Applicant: NTN CorporationInventors: Shohei Nakamura, Shouichi Hioki, Hiroyoshi Ito, Tooru Mayumi, Mitsuo Sasabe
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Publication number: 20020113334Abstract: Replicas are molded by curing a photo-curable liquid silicone rubber composition to form a transparent mother mold having a cavity corresponding to the outer contour of a master model, casting a photo-curable liquid resin into the mold cavity, and irradiating light to the liquid resin through the mold wall. Replicas can be fabricated by simple steps and within a short time.Type: ApplicationFiled: December 19, 2001Publication date: August 22, 2002Applicant: ASAHI KASEI KABUSHIKI KAISHAInventors: Yasuhiko Matsuoka, Tarou Kita, Hironao Fujiki, Takafumi Sakamoto, Shohei Nakamura, Kousi Anai
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Patent number: 6414012Abstract: Heterocyclic derivatives of the formula (I) wherein each symbol is as defined in the specification, pharmaceutically acceptable salts thereof and method of producing them. Pharmaceutical compositions containing the heterocyclic derivative or a pharmaceutically acceptable salt thereof, particularly, ACAT inhibitors and lipoperoxidation inhibitors. The heterocyclic derivatives and pharmaceutically acceptable salts thereof of the present invention show superior ACAT inhibitory activity and lipoperoxidation inhibitory activity, and are useful as ACAT inhibitors and hyperlipemia inhibitors. To be specific, they are useful for the prevention and treatment of arteriosclerotic lesions of arteriosclerosis, hyperlipemia and diabetes, as well as ischemic diseases of brain, heart and the like.Type: GrantFiled: August 12, 1999Date of Patent: July 2, 2002Assignee: Sankyo Company, LimitedInventors: Hiroshi Matsui, Shoji Kamiya, Hiroaki Shirahase, Shohei Nakamura, Katsuo Wada
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Publication number: 20020037150Abstract: During a period of a burst signal that controls a color in a video signal, a signal having the reverse phase and double the amplitude of the burst signal is added to superpose the signal on the burst signal by less than some cycles of the burst signal. A processed burst signal thus made is recorded on the magnetic tape. And, when reproducing the magnetic tape, a color signal detection circuit of a TV monitor is not influenced to reproduce a normal picture image. And, the color signal detection circuit of a video tape recorder is influenced to malfunction, which prevents a correct recording. To reproduce a magnetic tape duplicated by the video tape recorder by the TV monitor will present an abnormal picture image. Thus, the invention intends to prevent an unfair duplication, by making the color of the picture image abnormal in the unfair duplication.Type: ApplicationFiled: September 18, 2001Publication date: March 28, 2002Inventors: Masahisa Hamada, Shohei Nakamura
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Patent number: 6342178Abstract: Replicas are molded by curing a photo-curable liquid silicone rubber composition to form a transparent mother mold having a cavity corresponding to the outer contour of a master model, casting a photo-curable liquid resin into the mold cavity, and irradiating light to the liquid resin through the mold wall. Replicas can be fabricated by simple steps and within a short time.Type: GrantFiled: September 24, 1997Date of Patent: January 29, 2002Assignee: Asahi Kasei Kabushiki KaishaInventors: Yasuhiko Matsuoka, Tarou Kita, Hironao Fujiki, Takafumi Sakamoto, Shohei Nakamura, Kousi Anai
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Patent number: 6262108Abstract: The cromoglycic acid compound of the formula (I) has an antirheumatic action, an antiinflammatory action and an immunomodulating action. This compound is effective for the inhibition of the symptoms of chronic rheumatoid arthritis and is associated with fewer side effects. Therefore, the antirheumatic agent of the present invention can be used beneficially for the treatment of rheumatoid arthritis. In addition, this compound has anti-type I and anti-type IV allergic activities. Therefore, the compound can be used beneficially mainly for the treatment of allergic dermatitis, in which a type IV allergic reaction is involved, such as contact dermatitis, in which a type IV allergic reaction is involved, atopic dermatitis, in which type I and type IV allergic reactions are involved and the like.Type: GrantFiled: July 28, 2000Date of Patent: July 17, 2001Assignee: Kyoto Pharmaceutical Industries, Ltd.Inventors: Hiroaki Shirahase, Akihisa Yoshimi, Shohei Nakamura, Mamoru Kanda, Fumio Fukata
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Patent number: 6204392Abstract: Heterocyclic derivatives of the formula (I) wherein each symbol is as defined in the specification, pharmaceutically acceptable salts thereof and method of producing them. Pharmaceutical compositions containing the heterocyclic derivative or a pharmaceutically acceptable salt thereof, particularly, ACAT inhibitors and lipoperoxidation inhibitors. The heterocyclic derivatives and pharmaceutically acceptable salts thereof of the present invention show superior ACAT inhibitory activity and lipoperoxidation inhibitory activity, and are useful as ACAT inhibitors and hyperlipemia inhibitors. To be specific, they are useful for the prevention and treatment of arteriosclerotic lesions of arteriosclerosis, hyperlipemia and diabetes, as well as ischemic diseases of brain, heart and the like.Type: GrantFiled: April 1, 1999Date of Patent: March 20, 2001Assignee: Sankyo Company, LimitedInventors: Hiroshi Matsui, Shoji Kamiya, Hiroaki Shirahase, Shohei Nakamura
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Patent number: 6201011Abstract: A therapeutic agent for allergic dermatitis caused by type IV allergic reaction, which contains diethyl L-lysylcromoglycate of the formula: or a nontoxic salt thereof as an active ingredient. This therapeutic agent for allergic dermatitis is effective for the treatment of allergic dermatitis caused by type IV allergic reaction, such as contact dermatitis mainly induced by type IV allergic reaction and atopic dermatitis induced by type I and type IV allergic reactions.Type: GrantFiled: February 26, 1999Date of Patent: March 13, 2001Assignee: Kyoto Pharmaceutical Industries, Ltd.Inventors: Hiroaki Shirahase, Akihisa Yoshimi, Shohei Nakamura, Mamoru Kanda
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Patent number: 6200988Abstract: A heterocyclic derivative of the formula (I) wherein each symbol is as defined in the specification, and pharmaceutically acceptable salts thereof. The compound (I) of the present invention and pharmaceutically acceptable salts thereof exhibit superior ACAT inhibitory activity and lipoperoxidation inhibitory activity in mammals, and are useful as ACAT inhibitors and lipoperoxidation inhibitors. Specifically, they are useful for the prophylaxis and treatment of arteriosclerosis, hyperlipemia, arteriosclerosis in diabetes, and cerebrovascular and cardiovascular ischemic diseases.Type: GrantFiled: February 18, 2000Date of Patent: March 13, 2001Assignee: Kyoto Pharmaceutical Industries, Ltd.Inventors: Shoji Kamiya, Hiroaki Shirahase, Hiroshi Matsui, Shohei Nakamura, Katsuo Wada
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Patent number: 6127403Abstract: Heterocyclic derivatives of the formula (I) ##STR1## wherein each symbol is as defined in the specification, pharmaceutically acceptable salts thereof and method of producing them. Pharmaceutical compositions containing the heterocyclic derivative or a pharmaceutically acceptable salt thereof, particularly, ACAT inhibitors and lipoperoxidation inhibitors. The heterocyclic derivatives and pharmaceutically acceptable salts thereof of the present invention show superior ACAT inhibitory activity and lipoperoxidation inhibitory activity, and are useful as ACAT inhibitors and hyperlipemia inhibitors.To be specific, they are useful for the prevention and treatment of arteriosclerotic lesions of arteriosclerosis, hyperlipemia and diabetes, as well as ischemic diseases of brain, heart and the like.Type: GrantFiled: August 12, 1999Date of Patent: October 3, 2000Assignee: Sankyo Company, Ltd.Inventors: Hiroshi Matsui, Shoji Kamiya, Hiroaki Shirahase, Shohei Nakamura, Katsuo Wada
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Patent number: RE38970Abstract: A heterocyclic derivative of the formula (I) wherein each symbol is as defined in the specification, and pharmaceutically acceptable salts thereof. The compound (I) of the present invention and pharmaceutically acceptable salts thereof exhibit superior ACAT inhibitory activity and lipoperoxidation inhibitory activity in mammals, and are useful as ACAT inhibitors and lipoperoxidation inhibitors. Specifically, they are useful for the prophylaxis and treatment of arteriosclerosis, hyperlipemia, arteriosclerosis in diabetes, and cerebrovascular and cardiovascular ischemic diseases.Type: GrantFiled: September 30, 1996Date of Patent: February 7, 2006Assignee: Kyoto Pharmaceutical Industries, Ltd.Inventors: Shoji Kamiya, Hiroaki Shirahase, Hiroshi Matsui, Shohei Nakamura, Katsuo Wada