Patents by Inventor Mitsuyoshi Nakamura
Mitsuyoshi 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: 6453803Abstract: There is provided a soft ice cream in which even materials such as a strawberry easily changed in properties and containing an acid component can be used, and the unique flavor of the material other than a soft ice cream mix, such as strawberry jam and chocolate, can sufficiently be enjoyed. In the soft ice cream obtained by charging the cream flow of a cooled and semi-hardened soft ice cream mix discharged from a discharge nozzle into a cup so that the discharge shape is maintained as much as possible, the part formed of the strawberry jam is continuously disposed in the part formed of the soft ice cream mix along the cream flow charged into the cup.Type: GrantFiled: September 29, 2000Date of Patent: September 24, 2002Assignees: Sanyo Electric., Ltd., Sumi Corporation Co., Ltd.Inventors: Takuya Sodeyama, Sumio Uehara, Junichi Nakasato, Tsuyoshi Kurosawa, Shigeru Togashi, Kazuto Matsuda, Mamoru Ittetsu, Mitsuyoshi Nakamura, Naoto Kitazume, Shigeo Sato
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Publication number: 20020052158Abstract: A small watercraft includes an engine and an improved induction and charging forming system. The engine includes a fuel injection system with at least one fuel injector and a fuel delivery conduit for supplying fuel to the at least one fuel injector. The induction system includes an intake box configured to protect the at least one fuel injector and the fuel delivery conduit from damage that can be caused by heat generated from a portion of an exhaust system and/or water that may collect in a hull of the watercraft. The induction system can also include a set of throttle bodies. Each throttle body includes a throttle valve. The throttle valves are connected to a throttle shaft assembly. A pulley is attached to the throttle shaft assembly and is disposed between adjacent throttle bodies.Type: ApplicationFiled: July 11, 2001Publication date: May 2, 2002Inventors: Mitsuyoshi Nakamura, Yoshimasa Kinoshita
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Patent number: 6357399Abstract: A two-cycle, multi-cylinder engine maintains roughly equal temperatures between cylinders, despite differing exhaust efficiencies between the cylinders. Several ways of reducing the temperature of one of the cylinders in comparison to the other are disclosed. One embodiment involves supplying more coolant to the cooling passages around the hotter running cylinder. Other ways involve reducing the compression ratio or retarding ignition timing in the hotter running cylinder in comparison to the other cylinder.Type: GrantFiled: August 25, 2000Date of Patent: March 19, 2002Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Mitsuyoshi Nakamura
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Publication number: 20010036777Abstract: A watercraft includes an improved engine control system that enhances the responsiveness of the watercraft and eases watercraft operation. The watercraft includes a propulsion device, such as a jet propulsion unit, and an engine that powers the propulsion device. The engine control system is configured to maintain or increase engine speed under certain operating conditions.Type: ApplicationFiled: March 19, 2001Publication date: November 1, 2001Inventors: Kazumi Iida, Masaki Takegami, Shigeharu Mineo, Shigeyuki Ozawa, Mitsuyoshi Nakamura
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Patent number: 6109220Abstract: A two-cycle, multi-cylinder engine maintains roughly equal temperatures between cylinders, despite differing exhaust efficiencies between the cylinders. Several ways of reducing the temperature of one of the cylinders in comparison to the other are disclosed. One embodiment involves supplying more coolant to the cooling passages around the hotter running cylinder. Other ways involve reducing the compression ratio or retarding ignition timing in the hotter running cylinder in comparison to the other cylinder.Type: GrantFiled: September 23, 1996Date of Patent: August 29, 2000Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Mitsuyoshi Nakamura
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Patent number: 6015994Abstract: A semiconductor memory device and a manufacturing method thereof are disclosed in which a reduction of the number of steps is made possible between the step of writing into ROM and the completion of the semiconductor memory device. In this semiconductor memory device, a high resistance polycrystalline silicon wiring region is provided at a portion of a source wiring connected to a source region of an MOS transistor. Accordingly, the MOS transistor can be turned OFF easily when a voltage of 3 V to 5 V is applied to that MOS transistor, without having to control its threshold voltage. In addition, if the manufacturing process for forming the high resistance wiring region in the source region is performed after the formation of a contact hole for an aluminum wiring for drains, the number of process steps is reduced between the step of writing into the ROM and completing the semiconductor memory device.Type: GrantFiled: April 5, 1995Date of Patent: January 18, 2000Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Mitsuyoshi Nakamura
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Patent number: 5933736Abstract: A semiconductor device having the high integration and great driving ability is provided. An upper gate oxide film is formed on a gate electrode. An upper drain region is formed on a lower drain region through an oxide film, and an upper source region is formed on a lower source region through the oxide film. A polysilicon region is formed on the upper gate oxide film provided between the upper drain region and the upper source region. The lower layer portion of the polysilicon region is defined as a channel region.Type: GrantFiled: February 25, 1998Date of Patent: August 3, 1999Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Mitsuyoshi Nakamura
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Patent number: 5921225Abstract: An intake control mechanism for controlling the flow of air through an air intake of an engine is disclosed. The air intake comprises an intake member defining an intake passage corresponding to each combustion chamber of the engine. A throttle valve and a choke valve are movable positioned in each passage. The intake control mechanism includes a choke control and throttle control for moving the choke and throttle valves, respectfully. The choke control includes a choke linkage and the throttle control includes a throttle linkage, the linkages positioned outside of the intake member and between the choke and throttle valves. Preferably, the choke linkage is positioned between the throttle linkage and the intake member.Type: GrantFiled: September 22, 1997Date of Patent: July 13, 1999Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Mitsuyoshi Nakamura
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Patent number: 5757047Abstract: A semiconductor device having the high integration and great driving ability is provided. An upper gate oxide film is formed on a gate electrode. An upper drain region is formed on a lower drain region through an oxide film, and an upper source region is formed on a lower source region through the oxide film. A polysilicon region is formed on the upper gate oxide film provided between the upper drain region and the upper source region. The lower layer portion of the polysilicon region is defined as a channel region.Type: GrantFiled: May 16, 1996Date of Patent: May 26, 1998Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Mitsuyoshi Nakamura
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Patent number: 5732685Abstract: An improved fuel supply system for a watercraft engine eases the setting of fuel supply pressure in each of the carburetors of the engine. The fuel supply system includes a fuel supply line which supplies fuel to a plurality of feed branches of the fuel circuit which are arranged in parallel. Each branch communicates with one of the carburetors. The branches have equal lengths such that the flow resistance within each branch is generally the same between the branches. The fuel supply system also includes a fuel return line which communicates with a plurality of return branches of the fuel circuit. The return branches are arranged in parallel, with each return branch communicating with one of the carburetors. The return branches also have equal lengths and are arranged to have like flow resistances. This structure of the fuel circuit between the carburetors tends to isolate the carburetors from one another such that the fuel pressure in one carburetor does not affect the fuel pressure in the other carburetors.Type: GrantFiled: September 20, 1996Date of Patent: March 31, 1998Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Mitsuyoshi Nakamura
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Patent number: 5583364Abstract: A semiconductor device improved not to form a parasitic gate overlap capacitance in a drain side of an MOS transistor. A first gate electrode and a second gate electrode are provided on a semiconductor substrate. A common drain electrode is provided between first gate electrode and second gate electrode in a main surface of silicon substrate. Common drain region includes a high concentration impurity region and a pair of low concentration impurity regions. Outer edges of low concentration impurity regions are located coplanar with a side surface of gate electrodes.Type: GrantFiled: August 4, 1995Date of Patent: December 10, 1996Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Mitsuyoshi Nakamura
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Patent number: 5570661Abstract: An induction system for a marine propulsion engine wherein the induction system has a flow-controlling valve. A lubricant supply system is provided for delivering lubricant to the induction system upstream of the valve and toward the sliding support surfaces of the valve so as to reduce the likelihood of corrosion, particularly if the fuel supply washes the flow-controlling valve of lubricant during engine running.Type: GrantFiled: April 21, 1995Date of Patent: November 5, 1996Assignee: Sanshin Kogyo Kabushiki KaishaInventors: Mitsuyoshi Nakamura, Motohiro Ohshiro
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Patent number: 5370088Abstract: An improved reed valve arrangement for a two cycle engine wherein in addition to the normal reed valve elements and stopper plates, there are provided rectifier plates that define a flow passage so as to direct the charge away from the walls of the engine that define the associated intake passage.Type: GrantFiled: November 15, 1993Date of Patent: December 6, 1994Assignee: Sanshin Kogyo Kabushiki KaishaInventor: Mitsuyoshi Nakamura
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Patent number: 5144389Abstract: An MIS FET has an off-set gate structure in which a gate electrode and a drain region. The drain region is formed of an n type impurity region of a high concentration and has a pn junction region provided between the drain region and the p type silicon substrate. Further, n type impurity regions of the low concentration are in contact with a part of a peripheral portion of the n type impurity regions of the high concentration. The n type impurity regions of the low concentration alleviate the concentration of the electric field near the drain region to increase the drain breakdown voltage. The pn junction region of the n type impurity region of the high concentration and the p type silicon substrate increases a junction capacitance of the entire drain region, increases a surge current discharged to the substrate side from the drain region for the surge breakdown to increase the surge withstanding amount.Type: GrantFiled: September 17, 1990Date of Patent: September 1, 1992Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Mitsuyoshi Nakamura, Kazuaki Miyata
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Patent number: 4405671Abstract: Disclosed herein is an optical information recording disk comprising as a base material thereof a polymer or copolymer having a glass transition temperature of at least 50.degree. C. and a structural unit derived from a monomer which is an ester of an .alpha.,.beta.-unsaturated carboxylic acid and an alicyclic alcohol represented by the general formula: ##STR1## wherein n is an integer of 1-5, R denotes a hydrogen or an alkyl or alkenyl group, and, when n stands for an integer of 2-5, the Rs may be the same or different.The above disk does not develop deformation such as warping or twisting by changes in humidity and is uniform optically.Type: GrantFiled: January 20, 1982Date of Patent: September 20, 1983Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Hiroshi Ozawa, Masaaki Shin, Akio Fuziwara, Mitsuyoshi Nakamura, Ichiro Otsuka, Kazuo Sugazaki
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Patent number: 4202905Abstract: A luminous material includes a carrier and luminous bacteria dispersed in, admixed with, confined in or applied to the carrier, the material being useful in fishery, particularly as a fish bait.Type: GrantFiled: February 22, 1978Date of Patent: May 13, 1980Assignee: Mitsui Toatsu Chemicals IncorporatedInventors: Yoshiyuki Asai, Nobuyoshi Makiguchi, Masanobu Arita, Mitsuyoshi Nakamura, Kozo Sasa