Patents by Inventor Masahiko Nakazawa
Masahiko Nakazawa 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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Publication number: 20220412007Abstract: A formed body producing method including an accumulating step of accumulating a mixture including fiber and starch, a humidifying step of providing the accumulated mixture with water, and a forming step of obtaining a formed body by heating and pressurizing the mixture provided with water, wherein a gelatinization temperature of the starch is 60° C. or lower.Type: ApplicationFiled: June 27, 2022Publication date: December 29, 2022Inventors: Shigemi WAKABAYASHI, Masahiko NAKAZAWA
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Valve device, method for replacing valve body unit of valve device, and valve device assembly method
Patent number: 11506294Abstract: A valve body unit is configured to be disengaged from a stem by moving the stem and the valve body unit to a valve seat side in a state where a bonnet is separated from the valve seat, thereby pushing a replacement ring such that the replacement ring moves through the bonnet while decreasing in diameter and then drops down onto a ring dropping portion in the free state, then moving the stem, the valve body unit, and the replacement ring to an opposite side to the valve seat side such that a first surface comes into contact with a second surface and the ring dropping portion comes into contact with the replacement ring, and in this state, moving only the stem to the opposite side to the valve seat side such that the connection formed by a connecting mechanism between the stem connection portion and the stem is released.Type: GrantFiled: March 26, 2021Date of Patent: November 22, 2022Assignee: FUJIKIN INCORPORATEDInventors: Hidenobu Sato, Kenta Kondo, Tomohiro Nakata, Masahiko Nakazawa, Nobuo Nakamura, Tomoko Yuhara -
Publication number: 20220331755Abstract: Provided is an ultra-fine bubble-containing liquid manufacturing apparatus that can suppress viable cell contamination inside a UFB generating unit. To this end, it is provided with an ultra-fine bubble generating unit that generates an ultra-fine bubble by making film boiling by a heating unit in a liquid in which a gas is dissolved, and a radiating unit that is capable of irradiating a wetted portion of the ultra-fine bubble generating unit with ultraviolet rays.Type: ApplicationFiled: March 9, 2022Publication date: October 20, 2022Inventors: Hiroyuki Shimoyama, Masahiko Kubota, Hiroaki Mihara, Akira Yamamoto, Ikuo Nakazawa, Toshio Kashino
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Publication number: 20220323915Abstract: An ultra-fine bubble-containing liquid generating apparatus (UFB-containing liquid generating apparatus) includes a dissolving unit that generates a gas dissolving liquid and an ultra-fine bubble generating unit that generates ultra-fine bubbles in the gas dissolving liquid. Additionally, the UFB-containing liquid generating apparatus includes a temperature controlling unit that controls at least one of temperatures of the dissolving unit and the ultra-fine bubble generating unit such that the temperature of the ultra-fine bubble generating unit is equal to or lower than the temperature of the dissolving unit.Type: ApplicationFiled: March 28, 2022Publication date: October 13, 2022Inventors: Hiroaki Mihara, Masahiko Kubota, Akira Yamamoto, Ikuo Nakazawa, Hiroyuki Shimoyama, Toshio Kashino
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Publication number: 20220323917Abstract: A manufacturing apparatus for a solidified matter of an ultra-fine bubble (UFB)-containing liquid includes: a UFB generating unit that generates the UFB-containing liquid; and a cooling unit that generates the solidified matter of the UFB-containing liquid by cooling the UFB-containing liquid. The cooling unit cools the ultra-fine bubble-containing liquid such that a first solidified portion and a second solidified portion at a lower ultra-fine bubble concentration than that of the first solidified portion are formed in the solidified matter.Type: ApplicationFiled: March 9, 2022Publication date: October 13, 2022Inventors: Toshio Kashino, Masahiko Kubota, Akira Yamamoto, Hiroaki Mihara, Hiroyuki Shimoyama, Ikuo Nakazawa
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Publication number: 20220288542Abstract: An object of the present disclosure is to provide a manufacturing apparatus of an ultra fine bubble-contained liquid that can be utilized effectively because high concentration ultra fine bubbles are maintained for a long time at the time of manufacturing of the ultra fine bubble-contained liquid. One embodiment of the present invention is a manufacturing apparatus of an ultra fine bubble-contained liquid, which includes: a container having a gas supply port through which gas is introduced and a liquid supply port through which a liquid is introduced; and a generation unit inside the container, which is configured to cause an ultra fine bubble to occur in the liquid in which the gas is dissolved.Type: ApplicationFiled: March 4, 2022Publication date: September 15, 2022Inventors: Masahiko Kubota, Akira Yamamoto, Ikuo Nakazawa, Hiroaki Mihara, Hiroyuki Shimoyama, Toshio Kashino
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Publication number: 20220288869Abstract: The method for manufacturing a molded product of the present disclosure includes a deposition step of depositing a mixture including a fiber and a complex, a humidification step of humidifying the mixture, and a molding step of heating and pressurizing the humidified mixture to obtain a molded product. The complex includes a composite particle in which a binding material particle containing a binding material that exerts a binding force for binding the individual fibers together by being applied with moisture and an inorganic particle are included as a unit.Type: ApplicationFiled: March 9, 2022Publication date: September 15, 2022Inventors: Shigemi WAKABAYASHI, Masahiko NAKAZAWA, Takashi HIRAIWA
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Patent number: 11369926Abstract: An object of the present disclosure is to improve the generation efficiency of a UFB-contained liquid in a generation apparatus having a circulation mechanism. One embodiment of the present invention is an ultra fine bubble generation apparatus including: a first tank that stores a liquid; a generation unit configured to generate an ultra fine bubble in the liquid output from the first tank; a second tank that stores the liquid output from the generation unit; and a liquid passage that inputs again the liquid stored in the second tank to the first tank, and the ultra fine bubble generation apparatus includes a blocking configuration that blocks an ultra fine bubble included in the stored liquid from being input again to the first tank.Type: GrantFiled: January 29, 2021Date of Patent: June 28, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Yumi Yanai, Masahiko Kubota, Akira Yamamoto, Yoshiyuki Imanaka, Akitoshi Yamada, Hiroyuki Ishinaga, Teruo Ozaki, Toshio Kashino, Ikuo Nakazawa
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Patent number: 11359730Abstract: A valve device includes: a valve device body including a valve seat; a diaphragm that is provided to cover a valve chamber; a stem; and a valve body portion that is inserted into a central portion of the diaphragm, and that is configured to open and close the fluid passage by approaching the valve seat and separating from the valve seat. The diaphragm includes a main diaphragm, and a support diaphragm positioned on an opposite side of the main diaphragm to the valve chamber side and provided in contact with the main diaphragm. A first terminal end portion on an inner peripheral side of the main diaphragm is fixed to the valve body portion. A second terminal end portion on an inner peripheral side of the support diaphragm is separated from the first terminal end portion on the inner peripheral side of the main diaphragm.Type: GrantFiled: March 25, 2021Date of Patent: June 14, 2022Assignee: FUJIKIN INCORPORATEDInventors: Nobuo Nakamura, Kenta Kondo, Tomohiro Nakata, Masahiko Nakazawa
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Publication number: 20220056642Abstract: A fibrous body manufacturing method includes: a first supplying step of supplying a first raw material containing a first fiber group; a second supplying step of supplying a second raw material containing a second fiber group and a binder, the second fiber group having a length-average fiber length not less than a length-average fiber length of the first fiber group, the binder being configured to bond fibers together; a forming step of forming a first deposited material by depositing a first mixed material containing the first raw material and the second raw material; and a bonding step of bonding first fibers of the first fiber group and second fibers of the second fiber group that are contained in the first deposited material together using the binder to form a first fibrous body.Type: ApplicationFiled: August 18, 2021Publication date: February 24, 2022Inventors: Masahiko NAKAZAWA, Shigemi WAKABAYASHI, Yoshihiro UENO, Naotaka HIGUCHI, Hiroki KURATA, Shunichi SEKI
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Patent number: 11242934Abstract: Provided is a valve device which can precisely adjust the flow rate while ensuring the flow rate of the fluid. A valve device includes a main actuator which receives a pressure of a supplied drive fluid and moves an operating member to an open position or closed position; an adjusting actuator arranged to receive at least a part of a force generated by the main actuator and for adjusting the position of the operating member positioned at the open position; and a pressure regulator provided in a feed path of the drive fluid to the main actuator and for regulating the pressure of the supplied drive fluid to suppress fluctuation of the pressure of the drive fluid supplied to the main actuator.Type: GrantFiled: March 9, 2018Date of Patent: February 8, 2022Assignee: FUJIKIN INCORPORATEDInventors: Kenta Kondo, Toshihide Yoshida, Masahiko Takimoto, Tsutomu Shinohara, Tomohiro Nakata, Takeru Miura, Masahiko Nakazawa
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Patent number: 11231121Abstract: A first lever portion includes a first point-of-effort portion, a first fulcrum portion, and a first point-of-load portion. A second lever portion has a second point-of-effort portion, a second fulcrum portion, and a second point-of-load portion. A first point-of-effort portion is located between a first fulcrum portion and a first point-of-load portion in a direction orthogonal to an axis of a stem. A second fulcrum portion is located between a second point-of-effort portion and a second point-of-load portion in the direction orthogonal to the axis. A distance between the second fulcrum portion and the second point-of-load portion is configured longer than a distance between the second fulcrum portion and the second point-of-effort portion. The second point-of-load portion of the second lever portion is displaced toward the stem and moves the stem toward the piezoelectric element by means of displacement of the intermediate member to the second lever portion side.Type: GrantFiled: January 29, 2021Date of Patent: January 25, 2022Assignee: FUJIKIN INCORPORATEDInventors: Takashi Hirose, Masahiko Nakazawa, Nobuo Nakamura, Tomoko Yuhara
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Publication number: 20220010081Abstract: A binder that is used for forming fiber-based items and that binds fibers contains a polyester and an aggregation inhibitor. The polyester contains a structural unit derived from polyethylene terephthalate, a structural unit derived from at least one polyvalent carboxylic acid, and a structural unit derived from at least one polyhydric alcohol including trimethylolpropane. The binder exhibits a viscosity coefficient higher than 3500 P at 150° C. in dynamic viscoelasticity measurement.Type: ApplicationFiled: July 6, 2021Publication date: January 13, 2022Inventors: Takumi SAGO, Masahiko NAKAZAWA, Yoshihiro UENO
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Publication number: 20210301469Abstract: A fiber-formed body producing raw material contains fibers and a binder for binding the fibers, wherein the fiber-formed body producing raw material is nongranular, and 1.0?A/B?9.0, wherein A is a weight of the fibers in the fiber-formed body producing raw material and B is a weight of the binder in the fiber-formed body producing raw material.Type: ApplicationFiled: March 29, 2021Publication date: September 30, 2021Inventors: Shigemi WAKABAYASHI, Masahiko NAKAZAWA, Hiroki KURATA, Naotaka HIGUCHI, Yoshihiro UENO, Shunichi SEKI, Nobutaka URANO, Takehiko UEHARA
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VALVE DEVICE, METHOD FOR REPLACING VALVE BODY UNIT OF VALVE DEVICE, AND VALVE DEVICE ASSEMBLY METHOD
Publication number: 20210239222Abstract: A valve body unit is configured to be disengaged from a stem by moving the stem and the valve body unit to a valve seat side in a state where a bonnet is separated from the valve seat, thereby pushing a replacement ring such that the replacement ring moves through the bonnet while decreasing in diameter and then drops down onto a ring dropping portion in the free state, then moving the stem, the valve body unit, and the replacement ring to an opposite side to the valve seat side such that a first surface comes into contact with a second surface and the ring dropping portion comes into contact with the replacement ring, and in this state, moving only the stem to the opposite side to the valve seat side such that the connection formed by a connecting mechanism between the stem connection portion and the stem is released.Type: ApplicationFiled: March 26, 2021Publication date: August 5, 2021Inventors: Hidenobu SATO, Kenta KONDO, Tomohiro NAKATA, Masahiko NAKAZAWA, Nobuo NAKAMURA, Tomoko YUHARA -
Patent number: 11067195Abstract: An actuator includes: a casing; a reciprocating member provided in the casing to be reciprocatable; a drive part provided in the casing to drive the reciprocating member; a booster mechanism which is configured to amplify a drive force applied by the drive part to the reciprocating member; and a moving member which is configured to move on receiving the force amplified by the booster mechanism. The booster mechanism includes a plurality of levers which are arranged in a circumferential direction of the moving member. Each of the levers has an effort portion which is configured to receive the force from the reciprocating member, a fulcrum portion which is configured to come into contact with the casing to serve as a center of a revolution of the lever, and a load portion which is configured to transmit the force to the moving member.Type: GrantFiled: March 27, 2020Date of Patent: July 20, 2021Assignee: FUJIKIN INCORPORATEDInventors: Masahiko Nakazawa, Nobuo Nakamura, Tomohiro Nakata, Tsutomu Shinohara
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Publication number: 20210207722Abstract: A valve device includes: a valve device body including a valve seat; a diaphragm that is provided to cover a valve chamber; a stem; and a valve body portion that is inserted into a central portion of the diaphragm, and that is configured to open and close the fluid passage by approaching the valve seat and separating from the valve seat. The diaphragm includes a main diaphragm, and a support diaphragm positioned on an opposite side of the main diaphragm to the valve chamber side and provided in contact with the main diaphragm. A first terminal end portion on an inner peripheral side of the main diaphragm is fixed to the valve body portion. A second terminal end portion on an inner peripheral side of the support diaphragm is separated from the first terminal end portion on the inner peripheral side of the main diaphragm.Type: ApplicationFiled: March 25, 2021Publication date: July 8, 2021Inventors: Nobuo NAKAMURA, Kenta KONDO, Tomohiro NAKATA, Masahiko NAKAZAWA
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Patent number: 11052660Abstract: A liquid absorber includes a liquid absorption member and a case. The liquid absorption member absorbs liquid. The liquid absorption member includes materials that include a fiber and a liquid-absorbent resin. The liquid absorption member is stored in the case. The case has an opening portion. The materials of the liquid absorption member are bonded together in at least a portion of a surface of the liquid absorption member. The surface is a surface adjacent to the opening portion.Type: GrantFiled: January 27, 2020Date of Patent: July 6, 2021Assignee: Seiko Epson CorporationInventors: Masahiko Nakazawa, Shogo Nakada, Yoichi Miyasaka
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Publication number: 20210199210Abstract: A first lever portion includes a first point-of-effort portion, a first fulcrum portion, and a first point-of-load portion. A second lever portion has a second point-of-effort portion, a second fulcrum portion, and a second point-of-load portion. A first point-of-effort portion is located between a first fulcrum portion and a first point-of-load portion in a direction orthogonal to an axis of a stem. A second fulcrum portion is located between a second point-of-effort portion and a second point-of-load portion in the direction orthogonal to the axis. A distance between the second fulcrum portion and the second point-of-load portion is configured longer than a distance between the second fulcrum portion and the second point-of-effort portion. The second point-of-load portion of the second lever portion is displaced toward the stem and moves the stem toward the piezoelectric element by means of displacement of the intermediate member to the second lever portion side.Type: ApplicationFiled: January 29, 2021Publication date: July 1, 2021Inventors: Takashi HIROSE, Masahiko NAKAZAWA, Nobuo NAKAMURA, Tomoko YUHARA
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Patent number: 11046079Abstract: A liquid absorber includes a liquid absorption member, a case, and a cover. The liquid absorption member absorbs liquid. The liquid absorption member includes a fiber and a liquid-absorbent resin. The liquid absorption member is stored in the case. The cover covers the liquid absorption member. The cover includes through-holes through which the liquid is to pass. The cover includes a recessed portion recessed toward the liquid absorption member. The recessed portion is disposed at a location to which the liquid is to be discharged. The through-holes are disposed at least in the recessed portion.Type: GrantFiled: January 27, 2020Date of Patent: June 29, 2021Assignee: Seiko Epson CorporationInventors: Naotaka Higuchi, Masahiko Nakazawa, Shogo Nakada, Yoichi Miyasaka, Kaneo Yoda, Nobutaka Urano