Patents by Inventor Tadashi Sakurai

Tadashi Sakurai 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).

  • Publication number: 20200032075
    Abstract: A method for producing an anti-fouling coating film includes: a step (1) of applying a fine uneven layer forming agent containing at least one type of polysilazane as at least one type of silica raw material on at least one surface of a base substrate, the aforementioned at least one surface comprising at least one type of resin, to form a fine uneven layer containing silica and polysilazane; a step (2) of applying a modification layer forming agent containing a reactive organic compound and polysiloxane or perfluoropolyether on a surface of the fine uneven layer obtained in the step (1), to form a modification layer containing polysiloxane or perfluoropolyether, and a step (3) of applying lubricating oil containing silicone oil or fluorinated oil on a surface of the modification layer obtained in the step (2), to form a lubricating oil layer.
    Type: Application
    Filed: January 10, 2018
    Publication date: January 30, 2020
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yoshiko TSUKADA, Masanobu SUGIMOTO, Shinnichi AKAISHI, Daijirou SAKURAI, Yuji NOGUCHI, Masakazu NISHINO, Tadashi SUZUKI
  • Publication number: 20190227044
    Abstract: An artificial olfactory sensing system includes a sensor unit. The sensor unit includes a semiconductor device equipped with a transistor and a sensor cell in which an olfactory receptor is manifested on a lipid film. A proton adsorption film is formed on a gate electrode of the transistor. A physiological aqueous solution is disposed on the proton adsorption film. Then, the sensor cell is disposed in the physiological aqueous solution. A proton is adsorbed onto the proton adsorption film. When the olfactory receptor recognizes an odor molecule, the positive ions in the physiological aqueous solution flow from an ion channel of the olfactory receptor into the sensor cell. As a result, the proton is dissociated from the proton adsorption film into the physiological aqueous solution, and the potential of the gate electrode is changed.
    Type: Application
    Filed: January 17, 2019
    Publication date: July 25, 2019
    Inventors: Masahiko ANDO, Norifumi KAMESHIRO, Tadashi OKUMURA, Sanato NAGATA, Ryohei KANZAKI, Daigo TERUTSUKI, Hidefumi MITSUNO, Takeshi SAKURAI
  • Patent number: 7583012
    Abstract: There is a need for a piezoelectric element capable of improving a productivity and a yield without impairing the piezoelectric characteristic and a method for manufacturing the same. A piezoelectric element is provided with a substrate, a first electrode film disposed on the substrate, a piezoelectric film disposed on the first electrode film, and a second electrode film disposed on the piezoelectric film. The piezoelectric film has a laminated structure composed of a plurality of crystallized piezoelectric thin films. The piezoelectric film having a predetermined thickness is formed by repeated cycles of a film formation step of forming a piezoelectric thin film and a crystallization heat treatment step of heat-treating the piezoelectric thin film to effect crystallization. In this manner, a piezoelectric film exhibiting uniform crystallinity in the film thickness direction may be produced.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: September 1, 2009
    Assignee: Sony Corporation
    Inventors: Eiji Nakashio, Junichi Honda, Takashi Tamura, Koji Suzuki, Teruo Inaguma, Manabu Aizawa, Kazuo Takahashi, Tadashi Sakurai
  • Publication number: 20080222865
    Abstract: A piezoelectric element with a substrate, a first electrode film disposed on the substrate, a piezoelectric film disposed on the first electrode film, and a second electrode film disposed on the piezoelectric film, and a method of forming same. The piezoelectric film has a laminated structure composed of a plurality of crystallized piezoelectric thin films. The piezoelectric film has a predetermined thickness and is formed by repeated cycles of a film formation step of forming a piezoelectric thin film and a crystallization heat treatment step of heat-treating the piezoelectric thin film to effect crystallization.
    Type: Application
    Filed: May 19, 2008
    Publication date: September 18, 2008
    Applicant: SONY CORPORATION
    Inventors: Eiji Nakashio, Junichi Honda, Takashi Tamura, Koji Suzuki, Teruo Inaguma, Manabu Aizawa, Kazuo Takahashi, Tadashi Sakurai
  • Publication number: 20070031534
    Abstract: As a pet food produced to contain no proteins that can become allergens, a pet food that contains 1 or more types of amino acids or salts thereof instead of protein raw materials that can become allergens or a pet food produced to contain, in addition to the above amino acid(s), 1 or more types of protein raw materials with low allergenicity selected from any of potato, sweet potato, rice, foxtail millet, barnyard millet, kaoliang, corn, pea, brewer's yeast, and baker's yeast is provided.
    Type: Application
    Filed: February 25, 2005
    Publication date: February 8, 2007
    Inventors: Hajime Tsujimoto, Kenichi Masuda, Jun Ishihara, Masahiro Kaneko, Yoshikazu Hatano, Tadashi Sakurai, Masahiro Yamaguchi
  • Publication number: 20060197415
    Abstract: There is a need for a piezoelectric element capable of improving a productivity and a yield without impairing the piezoelectric characteristic and a method for manufacturing the same. A piezoelectric element is provided with a substrate, a first electrode film disposed on the substrate, a piezoelectric film disposed on the first electrode film, and a second electrode film disposed on the piezoelectric film. The piezoelectric film has a laminated structure composed of a plurality of crystallized piezoelectric thin films. The piezoelectric film having a predetermined thickness is formed by repeated cycles of a film formation step of forming a piezoelectric thin film and a crystallization heat treatment step of heat-treating the piezoelectric thin film to effect crystallization. In this manner, a piezoelectric film exhibiting uniform crystallinity in the film thickness direction may be produced.
    Type: Application
    Filed: March 3, 2006
    Publication date: September 7, 2006
    Inventors: Eiji Nakashio, Junichi Honda, Takashi Tamura, Koji Suzuki, Teruo Inaguma, Manabu Aizawa, Kazuo Takahashi, Tadashi Sakurai
  • Patent number: 6814909
    Abstract: An indicator comprising a porous resin material, and a liquid retained in the pores of the porous resin material, in which the whiteness of the porous resin material is at least 80, and the whiteness of the porous resin material is at least 20 larger than that of the indicator. This indicator displays information such as a period through the change of a color tone, and the like, well maintains the displaying properties, and suffers from less variation of displayed periods.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: November 9, 2004
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tadashi Sakurai, Takanori Kume, Tatsuhiro Nagamatsu, Tsuyoshi Moriguchi, Miya Nakayama
  • Patent number: 6626155
    Abstract: A motorcycle having an improved fuel tank arrangement with an opening in an upper side wall of the fuel tank that is closed by a combined fuel pump, closure plate and return port arrangement. The fuel is supplied to a fuel injection system through an arrangement including a filter and pressure regulator with the filter pressure regulator and opening all being positioned on the same side of the motorcycle and at relatively the same vertical height. The assembly may be removed from the opening without draining fuel due to its high placement in the opening.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: September 30, 2003
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Hideaki Ueda, Masaki Takegami, Kimiaki Nakamura, Tadashi Sakurai, Teiji Umeno
  • Patent number: 5948832
    Abstract: Provided are a resin composition improved in utilization of active compound by controlling the bleeding of the active compound low in vaporizability and a molded product obtained from the resin composition. The resin composition comprises 100 parts by weight of a resin, 0.01-200 parts by weight of an active compound and 0.1-100 parts by weight of a vaporizable plasticizer having a vapor pressure of 0.001 mmHg or higher at 20.degree. C., and the vapor pressure (P1) of the vaporizable plasticizer at 20.degree. C. and the vapor pressure (P2) of the active compound at 20.degree. C. satisfy the formula: P1/P2.gtoreq.2.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: September 7, 1999
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tatsuhiro Nagamatsu, Hiroki Nakata, Takanori Kume, Tadashi Sakurai
  • Patent number: 5616627
    Abstract: The present invention relates to a polypropylene resin composition containing about 90 to 60 parts by weight of a polypropylene block copolymer (A); and about 10 to 40 parts by weight of a polyethylene resin (B), wherein the polypropylene block copolymer is a polypropylene block copolymer which contains about 99 to 90% by weight of a crystalline polypropylene (a) and about 1 to 10% by weight of an amorphous ethylene-.alpha.-olefin copolymer (b) and has a melt flow rate (MFR) of about 2 to 15 g/10 minutes, and a die swell ratio, measured by a capillary rheometer, of at least 1.7. Foamed materials containing a fine and uniform foam are obtainable from this composition.
    Type: Grant
    Filed: July 17, 1995
    Date of Patent: April 1, 1997
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tadashi Sakurai, Kouichirou Asao, Akinobu Sakamoto
  • Patent number: 5459106
    Abstract: An AlGaAs chip which has an n-type layer and a p-type layer is immersed in an aqueous solution containing 0.2-0.6 wt. % of ammonia and 25-35 wt. % of hydrogen peroxide to form a primary protective layer, and after drying the AlGaAs chip, the AlGaAs chip is for a second time immersed in an aqueous solution containing 0.2-0.6 wt. % of ammonia and 25-35 wt. % of hydrogen peroxide to form a secondary protective layer.
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: October 17, 1995
    Assignee: Shin-Etsu Handotai Co., Ltd.
    Inventors: Masato Yamada, Tadashi Sakurai
  • Patent number: 5208016
    Abstract: An antimicrobial substance containing an ethylene copolymer as an active ingredient and an antimicrobial resin composition containing the ethylene copolymer are disclosed. The ethylene copolymer comprises from 40 to 95% by weight of ethylene, from 5 to 60% by weight of at least one dialkylaminoalkylacrylamide comonomer represented by formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group: R.sub.2 and R.sub.3, which may be the same or different, each represents an alkyl group having from 1 to 4 carbon atoms; and n represents an integer of from 2 to 5, and up to 20% by weight of one or more of other ethylenically unsaturated comonomers, and has a number average molecular weight of from 5,000 to 50,000.
    Type: Grant
    Filed: March 3, 1989
    Date of Patent: May 4, 1993
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Tadayuki Ohmae, Takashi Chinuki, Tadashi Sakurai, Kouichiro Asao, Makoto Fujimura, Shigeo Yamamoto, Masato Mizutani, Tomohiro Teramae
  • Patent number: 5009951
    Abstract: A conjugate fiber obtained by melt spinning (A) a crystalline poly-.alpha.-olefin and (B) an ethylene copolymer containing from 40 to 95% by weight of an ethylene unit and from 5 to 60% by weight of at least one dialkylaminoalkylacrylamide comonomer unit represented by formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2 and R.sub.3 each represents an alkyl group having from 1 to 4 carbon atoms; and n represents an integer of from 2 to 5,said ethylene copolymer having a melt index of from 10 to 1000 g/10 min as measured according to JIS K-6760, either by aligning the components (A) and (B) in parallel or by aligning the component (A) as a core and the component (B) as a sheath. The conjugated fiber is excellent in thermal adhesion, absorptivity by an acid aqueous solution, and dyeability and can easily be fabricated into a nonwoven fabric or nonwoven molding suited for various applications including separators of lead accumulators.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: April 23, 1991
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Tadayuki Ohmae, Tadashi Sakurai, Kouichiro Asao
  • Patent number: 4997895
    Abstract: An aqueous dispersion of a cationic polymer is disclosed, which is obtained by reacting an ethylene copolymer comprising from 40 to 80% by weight of ethylene and from 20 to 60% by weight of at least one aminoalkyl acrylamide comonomer represented by formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2 and R.sub.3 each represents a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms; and n represents an integer of from 2 to 4, and having a melt index, as measured in accordance with JIS K-6760, of from 10 to 1,000 g/10 min with hydrochloric acid in water to form a quaternary salt and subsequently reacting the resulting quaternary salt with an epihalohydrin compound through addition reaction. The aqueous dispersion provides a coating film having an improved electrical conductivity or produces effects to simultaneously improve degree of sizing and wet strength of paper.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: March 5, 1991
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tadayuki Ohmae, Kentaro Mashita, Noboru Yamaguchi, Kouichiro Asao, Norio Kondo, Tadashi Sakurai
  • Patent number: 4980238
    Abstract: An aqueous dispersion of a cationic polymer is disclosed, which is obtained by reacting an ethylene copolymer comprising from 40 to 80% by weight of ethylene and from 20 to 60% by weight of at least one aminoalkyl acrylamide comonomer represented by formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2 and R.sub.3 each represents a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms; and n represents an integer of from 2 to 4,and having a melt index, as measured in accordance with JIS K-6760, of from 10 to 1,000 g/10 min with hydrochloric acid in water to form a quaternary salt and subsequently reacting the resulting quaternary salt with an epihalohydrin compound through addition reaction. The aqueous dispersion provides a coating film having an improved electrical conductivity or produces effects to simultaneously improve degree of sizing and wet strength of paper.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: December 25, 1990
    Assignee: Sumitomo Chemical Company, Ltd.
    Inventors: Tadayuki Ohmae, Kentaro Mashita, Noboru Yamaguchi, Kouichiro Asao, Norio Kondo, Tadashi Sakurai
  • Patent number: 4957660
    Abstract: A conductive plastic molding obtained by melt molding an ethylene copolymer comprising from 40 to 90% by weight of an ethylene unit, from 10 to 60% by weight of at least one dialkylaminoalkylacrylamide comonomer unit represented by formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2 and R.sub.3 each represents an alkyl group having from 1 to 4 carbon atoms; and n represents an integer of from 2 to 5, and up to 20% by weight of one or more ethylenically unsaturated comonomer units and having a number average molecular weight of from 5,000 to 50,000 and impregnating at least 10 parts by weight of an aqueous solution of at least one of an organic acid, an inorganic acid, and an inorganic metal salt into 100 parts by weight of the resulting melt molded. The molding exhibits excellent conductivity and can be obtained easily and at low cost without any limitation on shape.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: September 18, 1990
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tadayuki Ohmae, Tadashi Sakurai, Noboru Yamaguchi, Mitsuyuki Okada, Kouichiro Asao
  • Patent number: 4931655
    Abstract: Prior to weathering test for samples, of example, plastic, fiber, or paint, the samples are exposed to ultraviolet ray radiation emitted from high pressure metal halide vapor discharge lamp at an energy level capable of deteriorating the samples in a short time, while maintaining the samples at a temperature which can not be a cause of the deterioration. According to the deterioration level, samples to be subjected to the weathering evaluation test are selected.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: June 5, 1990
    Assignees: Iwasaki Electric Co., Ltd., Dainippon Plastics Co., Ltd.
    Inventors: Yasuo Yoshida, Tadashi Kakinuma, Tadashi Sakurai, Yoshio Kishima, Hirofumi Kinugasa
  • Patent number: 4919757
    Abstract: An aqueous dispersion of a cationic polymer is disclosed, which is obtained by reacting an ethylene copolymer comprising from 40 to 80% by weight of ethylene and from 20 to 60% by weight of at least one aminoalkyl acrylamide comonomer represented by formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2 and R.sub.3 each represents a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms; and n represents an integer of from 2 to 4, and having a melt index, as measured in accordance with JIS K-6760, of from 10 to 1,000 g/10 min with hydrochloric acid in water to form a quaternary salt and subsequently reacting the resulting quaternary salt with an epihalohydrin compound through addition reaction. The aqueous dispersion provides a coating film having an improved electrical conductivity or produces effects to simultaneously improve degree of sizing and wet strength of paper.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: April 24, 1990
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tadayuki Ohmae, Kentaro Mashita, Noboru Yamaguchi, Kouichiro Asao, Norio Kondo, Tadashi Sakurai
  • Patent number: D476786
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: July 1, 2003
    Inventor: Tadashi Sakurai
  • Patent number: D572488
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: July 8, 2008
    Inventor: Tadashi Sakurai