Patents by Inventor Masayuki Yokoi
Masayuki Yokoi 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: 7690479Abstract: A silencer includes a smaller cylindrical member having a planar portion and a larger cylindrical member arranged to closely contact at least a portion of the outer circumferential surface of the smaller cylindrical member. The larger cylindrical member as seen in a direction orthogonal to its axis provides an oblate cross section having a major axis X and a minor axis Y and the smaller cylindrical member is arranged to have the planar portion traversing the major axis X of the larger cylindrical member.Type: GrantFiled: June 19, 2006Date of Patent: April 6, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hirotoshi Tanaka, Masayuki Yokoi, Fumihiko Mizuno, Hisashi Nishino, Tomoki Mabuchi
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Publication number: 20090068929Abstract: The present invention provides a surface-protection tape for semiconductor wafers having an even thickness accuracy, excellent surface smoothness, and excellent surface sliding properties such as freedom from blocking, etc., and a substrate film for the surface-protection tape. The substrate film for the surface-protection tape for semiconductor wafers has at least one layer containing a polyethylene-based resin and satisfies the following requirements: (1) the back and front surfaces of the substrate film have a surface roughness Ra measured based on JIS B0601 of not more than 0.8 ?m, and at least one surface thereof has a surface roughness Ra of not less than 0.05 ?m; and (2) the difference between the maximum and minimum thicknesses of the substrate film is not more than 4 ?m. The present invention also provides a surface-protection tape for semiconductor wafers comprising the substrate film and an adhesive layer.Type: ApplicationFiled: April 2, 2007Publication date: March 12, 2009Inventors: Koji Funazaki, Hisatomi Kojima, Naoya Hayashi, Masayuki Yokoi
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Publication number: 20060283661Abstract: A silencer includes a smaller cylindrical member having a planar portion and a larger cylindrical member arranged to closely contact at least a portion of the outer circumferential surface of the smaller cylindrical member. The larger cylindrical member as seen in a direction orthogonal to its axis provides an oblate cross section having a major axis X and a minor axis Y and the smaller cylindrical member is arranged to have the planar portion traversing the major axis X of the larger cylindrical member.Type: ApplicationFiled: June 19, 2006Publication date: December 21, 2006Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirotoshi Tanaka, Masayuki Yokoi, Fumihiko Mizuno, Hisashi Nishino, Tomoki Mabuchi
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Publication number: 20050224283Abstract: A muffler for internal combustion engines, in order to achieve a high attenuating effect without reducing the attenuating effect in the high revolution range of the engine, comprising one or more expanding chambers 11 through 13 formed in a muffler 1, an inlet pipe 5 which opens into a expanding chamber 11 and introduces exhaust gas into the muffler 1, and an outlet pipe 6 which opens into other expanding chamber 13 and introduces exhaust gas out of the muffler 1. In the muffler, the exhaust gas discharged through an aperture 5a of this inlet pipe 5 is inverted once or more times in the muffler 1 and is introduced into an aperture 6a of the outlet pipe 6. In a contraflow area L2 in which the flowing direction C of exhaust gas flowing in the expanding chambers 11 through 13 and the flowing direction E of exhaust gas flowing in the outlet pipe 6 are not the same, interference holes 7 composing of a plurality of small holes communicating with the expanding chambers 11 through 13 are bored in the outlet pipe 6.Type: ApplicationFiled: February 19, 2003Publication date: October 13, 2005Applicant: Sango Co. Ltd.Inventors: Masayuki Yokoi, Fumihiko Mizuno
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Patent number: 6946100Abstract: A blood test container 1 having a closed-bottom tubular container 2, a closed-bottom second tubular container having a diameter smaller than that of the tubular container 2 for accommodation therein, and a blood test reagent 3 secured onto at least one of an inner face of the tubular container and an outer face of the second tubular container. A blood test method comprising, in sequence, introducing blood into any one of the aforementioned blood test containers 1 and allowing the blood or its component to contact the blood test reagent 3.Type: GrantFiled: January 9, 2003Date of Patent: September 20, 2005Assignee: Sekisui Chemical Co., Ltd.Inventors: Masayuki Yokoi, Jun-ichiro Shinoda, Junzou Shibata, Mie Matsumoto, Kazuo Shimmura, Hironobu Isogawa
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Patent number: 6825000Abstract: An immunoassay reagent is obtained whereby a microscale substance such as an antigen or antibody can be assayed at a high sensitivity, and whereby a need to separate a reacted substance, e.g., an immunoreacted substance, from an unreacted substance can be eliminated or such a separation can be simplified. An immunoassay reagent, for use in the quantitative determination of a target antigen or antibody present in a sample, containing an insoluble carrier which carries an enzyme and an antibody or antigen corresponding to the antigen or antibody, an enzyme inhibitor for inhibiting the activity of the enzyme and a substrate with which the enzyme reacts.Type: GrantFiled: October 31, 2000Date of Patent: November 30, 2004Assignee: Sekisui Chemical Co., Ltd.Inventors: Masayuki Yokoi, Takayuki Akamine, Katsumi Yoshikawa
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Patent number: 6793885Abstract: A blood test container which facilitate the procedures starting from blood collection and ending with measurement of various components present in the blood while eliminating a risk for a tester to come into contact with the blood. A blood test container 1 having a closed-bottom tubular container 2, a closed-bottom second tubular container having a diameter smaller than that of the tubular container 2 for accommodation therein, and a blood test reagent 3 secured onto at least one of an inner face of the tubular container and an outer face of the second tubular container.Type: GrantFiled: March 16, 2000Date of Patent: September 21, 2004Assignee: Sekisui Chemical Co., Ltd.Inventors: Masayuki Yokoi, Jun-ichiro Shinoda, Junzou Shibata, Mie Matsumoto, Kazuo Shimmura, Hironobu Isogawa
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Publication number: 20040052682Abstract: A blood test container and a blood test method are provided which facilitate the procedures starting from blood collection and ending with measurement of various components present in the blood while eliminating a risk for a tester to come into contact with the blood.Type: ApplicationFiled: January 31, 2003Publication date: March 18, 2004Inventors: Masayuki Yokoi, Jun-Ichiro Shinoda, Junzou Shibata, Mie Matsumoto, Kazuo Shimmura, Hironobu Isogawa
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Publication number: 20030108447Abstract: A blood test container and a blood test method are provided which facilitate the procedures starting from blood collection and ending with measurement of various componens present in the blood while eliminating a risk for a tester to come into contact with the blood.Type: ApplicationFiled: January 9, 2003Publication date: June 12, 2003Inventors: Masayuki Yokoi, Jun-Ichiro Shinoda, Junzou Shibata, Mie Matsumoto, Kazuo Shimmura, Hironobu Isogawa
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Patent number: 6427802Abstract: A muffler in which in order to reduce a harsh high-frequency component exhaust noise as exhaust noise of a vehicle, and relieve a feeling of discomfort due to the exhaust noise, on at least one of an inner plate and an outer plate, a plurality of dot-shaped convex portions 15 and dot-shaped concave portions 16 are provided, and the convex portions 15 and concave portions 16 are alternately arranged to be surrounded with each other. Furthermore, the convex portion 15 is connected to the concave portion 16 by a curved surface.Type: GrantFiled: November 24, 2000Date of Patent: August 6, 2002Assignee: Sango Co., Ltd.Inventors: Masayuki Yokoi, Masahiro Maeno, Masayoshi Tange
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Patent number: 5922623Abstract: Disclosed is a method selective of vapor phase etching for fabricating a semiconductor device having a refractory metal silicide electrode abutting a silicon oxide film on the surface or a semiconductor device having an AlGaAs layer, an electrode formed on the AlGaAs layer and a silicon oxide film on the surface of the semiconductor device. The method comprises a step of removing a portion of the silicon oxide film by a gas including a vapor of hydrogen fluoride. The method further uses a mixture of nitrogen gas including vapor of anhydrous hydrofluoric acid and a nitrogen gas including a vapor of H.sub.2 O, wherein the ratio of the nitrogen gas including the vaporized anhydrous hydrofluoric acid to the nitrogen gas including vapor of H.sub.2 O is less than 1.Type: GrantFiled: May 8, 1996Date of Patent: July 13, 1999Assignee: NEC CorporationInventors: Hiroaki Tsutsui, Takao Matsumura, Hirokazu Oikawa, Masayuki Yokoi, Junichi Nakamura, Hiroyuki Sato, Jun Mizoe
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Patent number: 5453379Abstract: An eliminating agent used for the measurement of the amount of glycosylated hemoglobins in a blood sample is provided. The eliminating agent comprises condensed phosphoric acids and/or the salts thereof as the main ingredient, wherein the agent eliminates labile glycosylated hemoglobin A.sub.1c into non-glycosylated hemoglobin and glucose. There is also provided a reagent comprising the eliminating agent and a hemolysis agent, which is used for the measurement of the amount of glycosylated hemoglobins; and an eluent comprising the eliminating agent, which is used for the separation of glycosylated hemoglobins in blood samples by ion-exchange chromatography to measure the amount of the glycosylated hemoglobins. A method for measuring the amount of glycosylated hemoglobin A.sub.1c in a blood sample involves the use of the eliminating agent, the reagent comprising the eliminating agent and the hemolysis agent, and/or the eluent.Type: GrantFiled: September 3, 1991Date of Patent: September 26, 1995Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Kazutoshi Yamazaki, Masahiro Takechi, Toshiki Kawabe, Masayuki Yokoi
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Patent number: 5292663Abstract: An eliminating agent used for the measurement of the amount of glycosylated hemoglobins in a blood sample is provided. The eliminating agent comprises condensed phosphoric acids and/or the salts thereof as the main ingredient, wherein the agent eliminates labile glycosylated hemoglobin A.sub.1c into non-glycosylated hemoglobin and glucose. There is also provided a reagent comprising the eliminating agent and a hemolysis agent, which is used for the measurement of the amount of glycosylated hemoglobins; and an eluent comprising the eliminating agent, which is used for the separation of glycosylated hemoglobins in blood samples by ion-exchange chromatography to measure the amount of the glycosylated hemoglobins. A method for measuring the amount of glycosylated hemoglobin A.sub.1c in a blood sample involves the use of the eliminating agent, the reagent comprising the eliminating agent and the hemolysis agent, and/or the eluent.Type: GrantFiled: May 3, 1993Date of Patent: March 8, 1994Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Kazutoshi Yamazaki, Masahiro Takechi, Toshiki Kawabe, Masayuki Yokoi