Patents by Inventor Tsutomu Ishizaki
Tsutomu Ishizaki 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: 20240003420Abstract: Provided is a seal device, which can reliably prevent leakage of substances from a gap in a coupling portion for two flow paths while improving ease of operation at the time of coupling the two flow paths to each other and decoupling the two flow paths from each other. The seal device includes: a first flow path (16A) which allows substances to pass therethrough; a second flow path (16B) separably coupled to the first flow path (16A); a sealing member (52), which has elasticity, and is held in a gap in a coupling portion (15) between the first flow path (16A) and the second flow path (16B); and a movable member (30) that closes the gap in the coupling portion (15) by deforming the sealing member (52) when the first flow path (16A) and the second flow path (16B) are to be coupled to each other.Type: ApplicationFiled: July 2, 2022Publication date: January 4, 2024Inventors: Tetsuya ITO, Toshihito GOTO, Tsutomu ISHIZAKI, Tadayoshi ARAKAWA
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Patent number: 11007125Abstract: In order to provide a film-forming powder using hydroxyapatite which is a main component of teeth, or hydroxyapatite in which a color tone adjuster is blended, the powder being used in a jet-device for forming a film on a surface of a tooth by spraying the powder on the tooth, and being suitable for forming a film having a high hardness and extremely low solubility in acid in a short period of time, and suitable for forming a film of a powder conforming to the color tone of a tooth in a short period of time; a hydroxyapatite powder calcined in an inert gas atmosphere at 600 to 1350° C., a powder obtained by applying to the hydroxyapatite powder calcined at 600 to 1350° C. plasma irradiation, or plasma irradiation and mechanical energy, and additionally a film-forming powders obtained by blending color tone adjusters into these hydroxyapatite powders are produced.Type: GrantFiled: July 12, 2016Date of Patent: May 18, 2021Assignee: Kabushiki Kaisha SangiInventors: Tsutomu Ishizaki, Tadayoshi Arakawa, Kazushi Ota
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Publication number: 20200179238Abstract: In order to provide a film-forming powder using hydroxyapatite which is a main component of teeth, or hydroxyapatite in which a color tone adjuster is blended, the powder being used in a jet-device for forming a film on a surface of a tooth by spraying the powder on the tooth, and being suitable for forming a film having a high hardness and extremely low solubility in acid in a short period of time, and suitable for forming a film of a powder conforming to the color tone of a tooth in a short period of time; a hydroxyapatite powder calcined in an inert gas atmosphere at 600 to 1350° C., a powder obtained by applying to the hydroxyapatite powder calcined at 600 to 1350° C. plasma irradiation, or plasma irradiation and mechanical energy, and additionally a film-forming powders obtained by blending color tone adjusters into these hydroxyapatite powders are produced.Type: ApplicationFiled: November 25, 2019Publication date: June 11, 2020Inventors: Tsutomu Ishizaki, Tadayoshi Arakawa, Kazushi Ota
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Publication number: 20180250200Abstract: In order to provide a film-forming powder using hydroxyapatite which is a main component of teeth, or hydroxyapatite in which a color tone adjuster is blended, the powder being used in a jet-device for forming a film on a surface of a tooth by spraying the powder on the tooth, and being suitable for forming a film having a high hardness and extremely low solubility in acid in a short period of time, and suitable for forming a film of a powder conforming to the color tone of a tooth in a short period of time; a hydroxyapatite powder calcined in an inert gas atmosphere at 600 to 1350° C., a powder obtained by applying to the hydroxyapatite powder calcined at 600 to 1350° C. plasma irradiation, or plasma irradiation and mechanical energy, and additionally a film-forming powders obtained by blending color tone adjusters into these hydroxyapatite powders are produced.Type: ApplicationFiled: July 12, 2016Publication date: September 6, 2018Inventors: Tsutomu ISHIZAKI, Tadayoshi ARAKAWA, Kazushi OTA
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Publication number: 20180200154Abstract: In order to provide a film-forming powder using hydroxyapatite which is a main component of teeth, or hydroxyapatite in which a color tone adjuster is blended, the powder being used in a jet-device for forming a film on a surface of a tooth by spraying the powder on the tooth, and being suitable for forming a film having a high hardness and extremely low solubility in acid in a short period of time, and suitable for forming a film of a powder conforming to the color tone of a tooth in a short period of time; a hydroxyapatite powder calcined in an inert gas atmosphere at 600 to 1350° C., a powder obtained by applying to the hydroxyapatite powder calcined at 600 to 1350° C. plasma irradiation, or plasma irradiation and mechanical energy, and additionally a film-forming powders obtained by blending color tone adjusters into these hydroxyapatite powders are produced.Type: ApplicationFiled: July 12, 2016Publication date: July 19, 2018Inventors: Tsutomu ISHIZAKI, Tadayoshi ARAKAWA, Kazushi OTA
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Patent number: 9888989Abstract: Due to the low suction strength or an unsuitable positional relationship or distance between the suction feed and the oral cavity, conventional extra-oral intake devices exhibit the problem of not being able to fully suck particulate matter and droplets from teeth, shavings from repair products, saliva, bacteria, blood, rinse water, tooth surface cleaning agents, etc., that are dispersed to outside the oral cavity during practice. In order to improve suction strength, the present invention provides an intake device that is equipped with a protruding airflow-regulating member, the top of which is oriented in the direction in which the fluid flows into the opening part of the suction feed, and that can efficiently suck dispersed particulate matter and droplets within a wide range.Type: GrantFiled: April 17, 2014Date of Patent: February 13, 2018Assignees: KABUSHIKI KAISHA SANGI, TOHOKU UNIVERSITYInventors: Tsutomu Ishizaki, Kazushi Ohta, Shuji Sakuma, Tsunemoto Kuriyagawa
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Publication number: 20160113736Abstract: A hand piece for spraying powder is capable of grinding pellets and generating powder inside the hand piece. The hand piece includes: a pellet housing section for housing pellets; a powder generating section that grinds housed pellets and generates powder, and a spraying port that sprays the powder that has been generated in the powder generating section.Type: ApplicationFiled: June 3, 2014Publication date: April 28, 2016Inventors: Tsunemoto KURIYAGAWA, Shuji SAKUMA, Tsutomu ISHIZAKI, Kazushi OHTA
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Publication number: 20160100922Abstract: Due to the low suction strength or an unsuitable positional relationship or distance between the suction feed and the oral cavity, conventional extra-oral intake devices exhibit the problem of not being able to fully suck particulate matter and droplets from teeth, shavings from repair products, saliva, bacteria, blood, rinse water, tooth surface cleaning agents, etc., that are dispersed to outside the oral cavity during practice. In order to improve suction strength, the present invention provides an intake device that is equipped with a protruding airflow-regulating member, the top of which is oriented in the direction in which the fluid flows into the opening part of the suction feed, and that can efficiently suck dispersed particulate matter and droplets within a wide range.Type: ApplicationFiled: April 17, 2014Publication date: April 14, 2016Applicants: TOHOKU UNIVERSITY, KABUSHIKI KAISHA SANGIInventors: Tsutomu ISHIZAKI, Kazushi OHTA, Shuji SAKUMA, Tsunemoto KURIYAGAWA
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Patent number: 9034301Abstract: It is intended to provide a remineralization promoter for tooth enamel and a composition for an oral cavity, which can highly effectively promote the remineralization of tooth enamel and strongly inhibit dental caries. The remineralization promoter for tooth enamel and the composition for an oral cavity are characterized by containing amorphous hydroxyapatite and/or amorphized hydroxyapatite showing two peaks at 2?=31 to 35° in X-ray diffraction. The amorphized hydroxyapatite is obtained by reacting calcium salt with phosphate in an aqueous solution and drying the reaction solution at a temperature of 10 to 70° C.Type: GrantFiled: April 8, 2008Date of Patent: May 19, 2015Assignee: KABUSHIKI KAISHA SANGIInventors: Shuji Sakuma, Tsutomu Ishizaki, Tadayoshi Arakawa
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Publication number: 20100129298Abstract: It is intended to provide a remineralization promoter for tooth enamel and a composition for an oral cavity, which can highly effectively promote the remineralization of tooth enamel and strongly inhibit dental caries. The remineralization promoter for tooth enamel and the composition for an oral cavity are characterized by containing amorphous hydroxyapatite and/or amorphized hydroxyapatite showing two peaks at 2?=31 to 35° in X-ray diffraction. The amorphized hydroxyapatite is obtained by reacting calcium salt with phosphate in an aqueous solution and drying the reaction solution at a temperature of 10 to 70° C.Type: ApplicationFiled: April 8, 2008Publication date: May 27, 2010Applicant: KABUSHIKI KAISHA SANGIInventors: Shuji Sakuma, Tsutomu Ishizaki, Tadayoshi Arakawa
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Publication number: 20050102470Abstract: There are provided a plurality of physical disks and a controller for performing reading and writing of data to the storage areas of the physical disks according to instructions from a host device. In each physical disk, the storage area is divided into a number of areas, and a divided storage area of one physical disk is set to make a pair with a divided storage area of another physical disk. Data is managed by using divided storage areas of different physical disks set to be in a pair, whereby improvement in reliability, cost reduction and miniaturization can be achieved.Type: ApplicationFiled: October 28, 2004Publication date: May 12, 2005Applicant: NEC CorporationInventor: Tsutomu Ishizaki
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Patent number: 5833959Abstract: A composition for use in dental tissues includes hydroxyapatite having a particle size in a range from about 0.05 .mu.m to about 1.0 .mu.m. The amount of the hydroxyapatite is preferably a minimum of 0.1 percent by weight.Type: GrantFiled: January 23, 1997Date of Patent: November 10, 1998Assignee: Sangi Co., Ltd.Inventors: Kiminori Atsumi, Tsutomu Ishizaki, Hiroyuki Kawamata
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Patent number: 5780869Abstract: A semiconductor circuit means having an electrode of a conductive protein, cytochrome C and/or mitochondria, which is attached to an insulating film of phosphate, especially calcium phosphate, deposited on a substrate of a silicon monocrystal. A small and effective integrated circuit is obtained.Type: GrantFiled: March 22, 1995Date of Patent: July 14, 1998Assignee: Kabushiki Kaisha SangiInventors: Shuji Sakuma, Kiminori Atsumi, Tsutomu Ishizaki
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Patent number: 5670827Abstract: A semiconductor integrated circuit comprises a conductive protein electrode, such as cytochrome c, deposited on the surface of an apatite insulating layer such as hydroxyapatite, fluorinated apatite or chlorinated apatite. The apatite insulating layer is thin film coated onto a substrate such that it is substantially C-axis (002) oriented, which allows the integrated circuit to be of small size while minimizing undesired electron transfer between electrodes because the conductive protein electrode adopts the orientation of the apatite insulating film.Type: GrantFiled: October 17, 1995Date of Patent: September 23, 1997Assignee: Kabushiki Kaisha SangiInventors: Shuji Sakuma, Kiminori Atsumi, Tsutomu Ishizaki