Patents by Inventor Toshifumi Tsujino

Toshifumi Tsujino 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: 20060154048
    Abstract: An article coated with a functional coating film which has a base material, a primer layer coating the surface of the base material and having fine roughness and a functional layer coating the primer layer. The primer layer having fine roughness has portions formed by unevenly accumulating fine particles. The primer layer in the article contains silicon oxide as the main component, and the excellent transparency and the fine roughness are simultaneously exhibited.
    Type: Application
    Filed: December 10, 2003
    Publication date: July 13, 2006
    Inventors: Toyoyuki Teranishi, Toshifumi Tsujino, Kazutaka Kamitani
  • Publication number: 20060121190
    Abstract: A low reflection film comprising silica fine particles and a binder in a weight ratio proportion of 60:40 to 95:5 is obtained by mixing starting fine particles comprising at least non-aggregated silica fine particles with a mean particle size of 40-1000 nm and/or linear (chain-like) aggregated silica fine particles with a mean primary particle size of 10-100 nm, a hydrolyzable metal compound, water, and a solvent, hydrolyzing the hydrolyzable metal compound in the presence of the starting fine particles, and then coating the prepared coating solution onto a glass base substrate and subjecting it to heat treatment. The obtained low reflection film is a single-layer low reflection film with low reflectivity, excellent abrasion resistance, high film strength and excellent contamination removal property, and coating of the low reflection film onto glass base substrates can give low reflection glass articles.
    Type: Application
    Filed: June 1, 2005
    Publication date: June 8, 2006
    Inventors: Toshifumi Tsujino, Hideki Okamoto, Tetsuro Kawahara
  • Patent number: 6964815
    Abstract: A sol-form application liquid 3 is prepared by mixing together two solvents A and B and two film components C and D. The sol-form application liquid 3 thus prepared is applied onto a glass substrate 200, thus forming a mixed layer 401 on the glass substrate 200. The glass substrate 200 having the mixed layer 401 formed thereon is left at room temperature, whereupon the solvent A evaporates and phase separation of the mixed layer 401 into an upper layer 403 and a lower layer 402 occurs. The mixed layer 401 is then heated, thus evaporating the solvent B in the lower layer 402 and gelating the film component C in the upper layer 403 and the film component D in the lower layer 402, and hence forming an internal scattering layer 404.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: November 15, 2005
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Tetsuya Yoshitake, Toshifumi Tsujino, Kazutaka Kamitani
  • Patent number: 6921578
    Abstract: A low reflection film comprising silica fine particles and a binder in a weight ratio proportion of 60:40 to 95:5 is obtained by mixing starting fine particles comprising at least non-aggregated silica fine particles with a mean particle size of 40-1000 nm and/or linear (chain-like) aggregated silica fine particles with a mean primary particle size of 10-100 nm, a hydrolyzable metal compound, water, and a solvent, hydrolyzing the hydrolyzable metal compound in the presence of the starting fine particles, and then coating the prepared coating solution onto a glass base substrate and subjecting it to heat treatment. The obtained low reflection film is a single-layer low reflection film with low reflectivity, excellent abrasion resistance, high film strength and excellent contamination removal property, and coating of the low reflection film onto glass base substrates can give low reflection glass articles.
    Type: Grant
    Filed: August 11, 2001
    Date of Patent: July 26, 2005
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Toshifumi Tsujino, Hideki Okamoto, Tetsuro Kawahara
  • Publication number: 20050019528
    Abstract: By establishing a projecting part control method that enables the same application liquid to be used for a plurality of different scattering property requirements, there is provided a method of forming a projecting film according to which an increase in the number of times of preparing an application liquid and the frequency of replacing the application liquid can be suppressed, and hence the uptime ratio of coating equipment can be prevented from dropping, and thus the manufacturing cost can be reduced.
    Type: Application
    Filed: June 14, 2004
    Publication date: January 27, 2005
    Applicant: NIPPON SHEET GLASS CO., LTD.
    Inventors: Tetsuya Yoshitake, Toshifumi Tsujino
  • Publication number: 20050005645
    Abstract: The present invention provides a method for manufacturing a glass sheet in which a raw material containing glass cullets is melted to form the glass sheet, wherein the glass cullets include a colored film and this colored film contains an alkali metal oxide, a silicon oxide, and fine particles containing carbon as their main component. The glass cullets can be recycled as a part of the raw material for glass in spite of the colored film included therein since in the glass cullets, the fine particles containing carbon as their main component are contained as a colorant.
    Type: Application
    Filed: November 29, 2002
    Publication date: January 13, 2005
    Inventors: Kazuyuki Inoguchi, Toshifumi Tsujino, Hiromitsu Seto, Akihiro Koyama, Kazutaka Kamitani
  • Publication number: 20050003209
    Abstract: The present invention provides a glass sheet with a colored film that can be recycled as a cutlet raw material. The glass sheet includes a glass substrate and a colored film that coats at least part of the surface thereof. This colored film includes an alkali metal oxide, a silicon oxide, and fine particles containing carbon as their main component. The colored film functions as light-shielding films that reduce the visible light transmittance and ultraviolet transmittance.
    Type: Application
    Filed: November 29, 2002
    Publication date: January 6, 2005
    Inventors: Kazuyuki Inoguchi, Kazutaka Kamitani, Toshifumi Tsujino
  • Publication number: 20050003210
    Abstract: The invention provides a substrate with a film, in which functional particles are dispersed, and whose transparency is maintained even when heated. The film includes a matrix including an alkali metal oxide and a silicon oxide, and functional particles dispersed in the matrix is formed on a substrate. The alkali metal oxide includes at least sodium, and lithium and/or potassium. A mole ratio R2O/SiO2 of the alkali metal oxide to the silicon oxide included in the film is in a range of 17/100 to 22/100. The haze ratio of this substrate with a film stays low even when heated.
    Type: Application
    Filed: May 6, 2004
    Publication date: January 6, 2005
    Applicant: NIPPON SHEET GLASS COMPANY, LIMITED
    Inventors: Kazuyuki Inoguchi, Mizuho Matsuda, Toshifumi Tsujino, Mamoru Yoshida
  • Publication number: 20040247800
    Abstract: A projecting film enables adhesion to a reflecting film 44 made of an inorganic material to be improved, and alteration of optical properties of the reflecting film 44 to be prevented. A method is provided for forming such a projecting film that enables the surface roughness to be controlled freely through few manufacturing steps. A sol-form application liquid in which are mixed metal compounds and solvent(s) is prepared, the prepared sol-form application liquid is applied onto a glass substrate 40 to form a mixed layer 41 on the glass substrate 40, and the mixed layer 41 on the glass substrate 40 is dried, thus evaporating off the solvent(s), and hence bringing about phase separation into an upper layer and a lower layer, whereby an internal scattering layer is formed.
    Type: Application
    Filed: March 10, 2004
    Publication date: December 9, 2004
    Applicant: NIPPON SHEET GLASS CO., LTD.
    Inventors: Tetsuya Yoshitake, Toshifumi Tsujino
  • Publication number: 20040043210
    Abstract: A reflection reducing coating allowing a durability represented by wear resistance to be compatible with a reflection reducing function, comprising a binder layer and a plurality of particulates, wherein the inside porosity of the binder layer is 50 volume% or less and the averaged value of the depths of the particulates buried in the binder layer is equivalent to ¼ to ½ of the averaged particulate diameter of the plurality of particulates.
    Type: Application
    Filed: June 17, 2003
    Publication date: March 4, 2004
    Inventors: Yasunori Seto, Toshifumi Tsujino, Katsuhiko Kinugawa, Masahiro Hirata
  • Patent number: 6686049
    Abstract: Anti-reflection colored film-coated glass products prepared by forming on a transparent glass substrate with a refractive index of 1.47-1.53, a high refractive index film with a refractive index of 1.59-2.30 and a film thickness of 80-140 nm and containing 0-85% silicon oxides, 10-95% titanium oxides and 5-30% fine gold particles in terms of weight percentage, and by forming on the high refractive index film, a low refractive index film with a refractive index which is a value in the range of 1.35-1.58 and at least 0.20 smaller than the refractive index of the high refractive index film, having a film thickness of 70-99 nm and containing 90-100% silicon oxides in terms of weight percentage.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: February 3, 2004
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Koichiro Nakamura, Toshifumi Tsujino
  • Publication number: 20030175528
    Abstract: A sol-form application liquid 3 is prepared by mixing together two solvents A and B and two film components C and D. The sol-form application liquid 3 thus prepared is applied onto a glass substrate 200, thus forming a mixed layer 401 on the glass substrate 200. The glass substrate 200 having the mixed layer 401 formed thereon is left at room temperature, whereupon the solvent A evaporates and phase separation of the mixed layer 401 into an upper layer 403 and a lower layer 402 occurs. The mixed layer 401 is then heated, thus evaporating the solvent B in the lower layer 402 and gelating the film component C in the upper layer 403 and the film component D in the lower layer 402, and hence forming an internal scattering layer 404.
    Type: Application
    Filed: May 9, 2003
    Publication date: September 18, 2003
    Inventors: Tetsuya Yoshitake, Toshifumi Tsujino, Kazutaka Kamitani
  • Patent number: 6607832
    Abstract: An ultraviolet/infrared absorbent glass plate includes base glass including 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; 0 to 10 wt. % MgO; 5 to 15 wt. % CaO; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O; 5 to 15 wt. % a total amount of MgO and CaO; 10 to 20 wt. % a total amount of Na2O and K2O; 0.05 to 0.3 wt. % SO3; 0 to 5 wt. % B2O3; 0 to 1 wt. % SnO2; and 0 to 350 ppm MnO; and colorants including 0.2 to 0.45 wt. % total iron oxide (T—Fe2O3) expressed as Fe2O3; 0.01 to 0.03 wt. % (excluding 0.03 wt. %) FeO; 0.8 to 2 wt. % CeO2; 0 to 0.003 wt. % CoO; and 0 to 1.5 wt. % TiO2. FeO expressed as Fe2O3 is 5 to 10 wt. % (excluding 10 wt. %) of T—Fe2O3, and the glass at any thickness in a range of 3.25 mm to 6.25 mm has visible light transmittance of equal to or more than 80% when measured by using CIE illuminant A.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: August 19, 2003
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Yukihito Nagashima, Isamu Kuroda, Mitsuhiro Kawazu, Toshifumi Tsujino
  • Patent number: 6468934
    Abstract: An ultraviolet/infrared absorbent glass is formed of base glass, and colorants. The base glass includes 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; 0 to 10 wt. % MgO; 5 to 15 wt. % CaO; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O; 5 to 15 wt. % a total amount of MgO and CaO; 10 to 20 wt. % a total amount of Na2O and K2O; 0.05 to 0.3 wt. % SO3; and 0 to 5 wt. % B2O3. The colorants are formed of 0.35 to 0.55 wt. % the total iron oxide (T-Fe2O3) expressed as Fe2O3; 0.08 to 0.15 wt. % FeO; 0.8 to 1.5 wt. % CeO2 and 0 to 1.5 wt. % TiO2. FeO expressed as Fe2O3 is equal to or more than 20 wt.% and less than 27 wt. % of T-Fe2O3. The glass has high visible light transmittance and light greensih color shade so that it is useful for a window of a vehicle and a building.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: October 22, 2002
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Yukihito Nagashima, Mitsuhiro Kawazu, Toshifumi Tsujino
  • Patent number: 6399229
    Abstract: The present invention is directed to a light-transmitting color film comprising oxides which have high chemical resistance and excellent light-absorption effect, making them available in a wide color range; a method for producing the same; and a coating solution used for forming the color film. In the light-transmitting color film comprising an oxide of an element which serves as a network former and oxides of transition metal elements serving as coloring components, the element serving as a network former is at least one selected from Si, Al, and B, and the transition metal elements comprise Cu, Mn, and Ni; and the two types of oxides form a complex oxide.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: June 4, 2002
    Assignee: Nippon Sheet Glass Co., LTD
    Inventors: Hiromitsu Takeda, Kennichi Fujita, Taro Miyauchi, Toshifumi Tsujino, Tatsuya Noguchi, Hideki Okamoto, Takashi Muromachi
  • Publication number: 20020064661
    Abstract: The present invention is directed to a light-transmitting color film comprising oxides which have high chemical resistance and excellent light-absorption effect, making them available in a wide color range; a method for producing the same; and a coating solution used for forming the color film. In the light-transmitting color film comprising an oxide of an element which serves as a network former and oxides of transition metal elements serving as coloring components, the element serving as a network former is at least one selected from Si, Al, and B, and the transition metal elements comprise Cu, Mn, and Ni; and the two types of oxides form a complex oxide.
    Type: Application
    Filed: December 3, 2001
    Publication date: May 30, 2002
    Inventors: Hiromitsu Takeda, Kennichi Fujita, Taro Miyauchi, Toshifumi Tsujino, Tatsuya Noguchi, Hideki Okamoto, Takashi Muromachi
  • Patent number: 6379803
    Abstract: The present invention is a low reflection glass article which is prepared by laminating a first layer which has a middle refractive index (n1) from 1.60 to 1.95 and has a film thickness of (60 to 130 nm)/n1, a second layer which has a high refractive index (n2) which is in a range from 1.91 to 2.60 and higher than the refractive index of said first layer by at least 0.20 and has a film thickness of (140 to 230 nm)/n2, and a third layer which has a low refractive index (n3) which is in a range from 1.35 to 1.59 and lower than the refractive index of said first layer by at least 0.20 and has a film thickness of (110 to 150 nm)/n3 in this order on a transparent glass substrate having a refractive index from 1.47 to 1.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: April 30, 2002
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Koichiro Nakamura, Toshifumi Tsujino, Koji Yokoi
  • Publication number: 20020014090
    Abstract: A low reflection film comprising silica fine particles and a binder in a weight ratio proportion of 60:40 to 95:5 is obtained by mixing starting fine particles comprising at least non-aggregated silica fine particles with a mean particle size of 40-1000 nm and/or linear (chain-like) aggregated silica fine particles with a mean primary particle size of 10-100 nm, a hydrolyzable metal compound, water, and a solvent, hydrolyzing the hydrolyzable metal compound in the presence of the starting fine particles, and then coating the prepared coating solution onto a glass base substrate and subjecting it to heat treatment.
    Type: Application
    Filed: August 11, 2001
    Publication date: February 7, 2002
    Inventors: Toshifumi Tsujino, Hideki Okamoto, Tetsuro Kawahara
  • Patent number: 6340646
    Abstract: A colored film-coated ultraviolet/infrared absorbent glass plate is formed of base glass, colorants, and a colored film. The base glass includes 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; 0 to 10 wt. % MgO; 5 to 15 wt. % CaO; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O; 5 to 15 wt. % total amount of MgO and CaO; 10 to 20 wt. % total amount of Na2O and K2O; 0.05 to 0.3 wt. % of SO3; and 0 to 5 wt. % B2O3. The colorants includes 0.35 to 0.55 wt. % total iron oxide (T-Fe2O3) expressed as Fe2O3; 0.08 to 0.15 wt. % FeO; 0.8 to 1.5 wt. % CeO2; and 0 to 0.5 wt. % TiO2. FeO expressed as Fe2O3 is equal to or more than 20 wt. % and less than 27 wt. % of T-Fe2O3. The colored film has a red color shade with a thickness between 30 nm and 300 nm and includes fine particles of gold and silicon oxide of more than 50 wt. % and equal to or less than 95 wt. %. The colored film is applied onto a surface of the ultraviolet/infrared absorbent glass plate.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: January 22, 2002
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Yukihito Nagashima, Mitsuhiro Kawazu, Toshifumi Tsujino
  • Publication number: 20010018393
    Abstract: The ultraviolet/infrared absorbent glass consisting of base glass including: 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; 0 to 10 wt. % MgO; 5 to 15 wt. % CaO; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O; 5 to 15 wt. % a total amount of MgO and CaO; 10 to 20 wt. % a total amount of Na2O and K2O; 0.05 to 0.3 wt. % SO3; and 0 to 5 wt. % B2O3, and colorants including: 0.35 to 0.55 wt. % the total iron oxide (T-Fe2O3) expressed as Fe2O3; 0.08 to 0.15 wt. % FeO; 0.8 to 1.5 wt. % CeO2 and 0 to 1.5 wt. % TiO2, wherein FeO expressed as Fe2O3 is in a range of 20 to 27 wt. % (excluding 27 wt. %) of T-Fe2O3. The ultraviolet/infrared absorbent glass plate comprising the ultraviolet/infrared absorbent glass wherein the glass has the visible light transmittance of equal to or more than 75%, the solar energy transmittance of equal to or less than 60%, the ultraviolet transmittance of equal to or less than 15%, the dominant wavelength in a range of 495 to 535 nm and the excitation purity of equal to or less than 2.5%.
    Type: Application
    Filed: February 20, 2001
    Publication date: August 30, 2001
    Inventors: Yukihito Nagashima, Mitsuhiro Kawazu, Toshifumi Tsujino