Patents by Inventor Isamu Kuroda

Isamu Kuroda 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).

  • Patent number: 7393802
    Abstract: An ultraviolet/infrared absorbent low transmittance glass is formed of base glass containing 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; greater than 2.1 to less than or equal to 10 wt. % MgO; 5 to 15 wt. % CaO wherein a total amount of MgO and CaO is 7 to 15 wt. %; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O wherein a total amount of Na2O and K2O is 10 to 20 wt. %; and 0 to 5 wt. % B2O3, and colorants including 1.25 to 2.2 wt. % total iron oxide (T-Fe2O3) expressed as Fe2O3; 0.001 to 0.018 wt. % CoO; 0 to 0.0004 wt. % Se; and 0.028 to 0.2 wt. % NiO, wherein the glass has a turquoise blue or deep green color.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: July 1, 2008
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Hiromitsu Seto, Yukihito Nagashima, Isamu Kuroda, Shigekazu Yoshii
  • Patent number: 7071134
    Abstract: A high transmittance glass sheet is provided that is formed of a soda-lime-silica glass composition containing, expressed in wt. %, less than 0.020% of total iron oxide in terms of Fe2O3 and 0.006 to 2.0% of zinc oxide. The glass sheet allows the formation of nickel sulfide particles to be suppressed by the addition of a zinc compound to a glass raw material.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: July 4, 2006
    Assignee: Nippon Sheet Glass Company, Limited
    Inventors: Akihiro Koyama, Isamu Kuroda, Nobuyuki Yamamoto, Yasunori Seto
  • Patent number: 6903037
    Abstract: A high transmittance glass sheet is provided that is formed of a soda-lime-silica glass composition containing, expressed in wt. %, less than 0.020% of total iron oxide in terms of Fe2O3 and 0.006 to 2.0% of zinc oxide. The glass sheet allows the formation of nickel sulfide particles to be suppressed by the addition of a zinc compound to a glass raw material.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: June 7, 2005
    Assignee: Nippon Sheet Glass Company, Limited
    Inventors: Akihiro Koyama, Isamu Kuroda, Nobuyuki Yamamoto, Yasunori Seto
  • Patent number: 6844280
    Abstract: The present invention is to provide a high transmittance glass sheet that has a composition containing as coloring components, expressed in wt. %, 0.005 to less than 0.02% of total iron oxide in terms of Fe2O3, less than 0.008% of FeO, and 0 to 0.25% of cerium oxide and having a ratio of FeO in terms of Fe2O3 to the total iron oxide of lower than 40%, and exhibits high visible light transmittance and solar radiation transmittance. Alternatively, a high transmittance glass sheet is provided that contains not more than 0.06% of total iron oxide and 0.025 to 0.20% of cerium oxide and has a ratio of a fluorescence intensity at 395 nm to a fluorescence intensity at 600 nm of 10% or higher when subjected to ultraviolet irradiation at a wavelength of 335 nm.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: January 18, 2005
    Assignee: Nippon Sheet Glass Company, Limited
    Inventors: Akihiro Koyama, Isamu Kuroda, Nobuyuki Yamamoto, Yasunori Seto
  • Patent number: 6831030
    Abstract: A high transmittance glass sheet is provided that is formed of a soda-lime-silica glass composition containing, expressed in wt. %, less than 0.020% of total iron oxide in terms of Fe2O3 and 0.006 to 2.0% of zinc oxide. The glass sheet allows the formation of nickel sulfide particles to be suppressed by the addition of a zinc compound to a glass raw material.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: December 14, 2004
    Assignee: Nippon Sheet Glass Company, Ltd.
    Inventors: Akihiro Koyama, Isamu Kuroda, Nobuyuki Yamamoto, Yasunori Seto
  • Publication number: 20040186002
    Abstract: An ultraviolet/infrared absorbent low transmittance glass is formed of base glass containing 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; greater than 2.1 to less than or equal to 10 wt. % MgO; 5 to 15 wt. % CaO wherein a total amount of MgO and CaO is 7 to 15 wt. %; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O wherein a total amount of Na2O and K2O is 10 to 20 wt. %; and 0 to 5 wt. % B2O3, and colorants including 1.25 to 2.2 wt. % total iron oxide (T-Fe2O3) expressed as Fe2O3; 0.001 to 0.018 wt. % CoO; 0 to 0.0004 wt. % Se; and 0.028 to 0.2 wt. % NiO, wherein the glass has a turquoise blue or deep green color.
    Type: Application
    Filed: March 16, 2004
    Publication date: September 23, 2004
    Inventors: Hiromitsu Seto, Yukihito Nagashima, Isamu Kuroda, Shigekazu Yoshii
  • Publication number: 20040162212
    Abstract: A high transmittance glass sheet is provided that is formed of a soda-lime-silica glass composition containing, expressed in wt. %, less than 0.020% of total iron oxide in terms of Fe2O3 and 0.006 to 2.0% of zinc oxide. The glass sheet allows the formation of nickel sulfide particles to be suppressed by the addition of a zinc compound to a glass raw material.
    Type: Application
    Filed: February 5, 2004
    Publication date: August 19, 2004
    Applicant: NIPPON SHEET GLASS COMPANY, LIMITED
    Inventors: Akihiro Koyama, Isamu Kuroda, Nobuyuki Yamamoto, Yasunori Seto
  • Publication number: 20040157722
    Abstract: A high transmittance glass sheet is provided that is formed of a soda-lime-silica glass composition containing, expressed in wt. %, less than 0.020% of total iron oxide in terms of Fe2O3 and 0.006 to 2.0% of zinc oxide. The glass sheet allows the formation of nickel sulfide particles to be suppressed by the addition of a zinc compound to a glass raw material.
    Type: Application
    Filed: February 5, 2004
    Publication date: August 12, 2004
    Applicant: NIPPON SHEET GLASS COMPANY, LIMITED
    Inventors: Akihiro Koyama, Isamu Kuroda, Nobuyuki Yamamoto, Yasunori Seto
  • Publication number: 20030230969
    Abstract: A flat electron beam excitation display includes: a front panel 1 made of a glass substrate 15 having an image-forming member 5 formed in its inner surface; and a rear panel 2 made of a glass substrate 21 mounted with a group of electron emission devices. A plurality of glass spacers 4 are inserted between the front panel 1 and the rear panel 2 so that the glass spacers 4 serve as atmospheric pressure bearing members.
    Type: Application
    Filed: June 13, 2003
    Publication date: December 18, 2003
    Inventors: Toshiaki Mizuno, Akihiro Koyama, Kosuke Fujiwara, Isamu Kuroda, Yukihito Nagashima
  • 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
  • Publication number: 20030125188
    Abstract: A high transmittance glass sheet is provided that is formed of a soda-lime-silica glass composition containing, expressed in wt. %, less than 0.020% of total iron oxide in terms of Fe2O3 and 0.006 to 2.0% of zinc oxide. The glass sheet allows the formation of nickel sulfide particles to be suppressed by the addition of a zinc compound to a glass raw material.
    Type: Application
    Filed: September 5, 2002
    Publication date: July 3, 2003
    Applicant: NIPPON SHEET GLASS CO., LTD.
    Inventors: Akihiro Koyama, Isamu Kuroda, Nobuyuki Yamamoto, Yasunori Seto
  • Publication number: 20030114291
    Abstract: The present invention is to provide a high transmittance glass sheet that has a composition containing as coloring components, expressed in wt. %, 0.005 to less than 0.02% of total iron oxide in terms of Fe2O3, less than 0.008% of FeO, and 0 to 0.25% of cerium oxide and having a ratio of FeO in terms of Fe2O3 to the total iron oxide of lower than 40%, and exhibits high visible light transmittance and solar radiation transmittance. Alternatively, a high transmittance glass sheet is provided that contains not more than 0.06% of total iron oxide and 0.025 to 0.20% of cerium oxide and has a ratio of a fluorescence intensity at 395 nm to a fluorescence intensity at 600 nm of 10% or higher when subjected to ultraviolet irradiation at a wavelength of 335 nm.
    Type: Application
    Filed: September 6, 2002
    Publication date: June 19, 2003
    Inventors: Akihiro Koyama, Isamu Kuroda, Nobuyuki Yamamoto, Yasunori Seto
  • Publication number: 20020155939
    Abstract: Ultraviolet/infrared absorbent low transmittance glass having an almost neutral color such as turquoise blue and deep green and exhibiting low or middle visible light transmittance, low total solar energy transmittance, and low ultraviolet transmittance is formed of base glass containing: 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; 2 to 10 wt. % MgO; 5 to 15 wt. % CaO (a total amount of MgO and CaO is 7 to 15 wt. %); 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O (a total amount of Na2O and K2O is 10 to 20 wt. %); and 0 to 5 wt. % B2O3, and colorants including: 1.25 to 2.2 wt. % total iron oxide (T-Fe2O6) expressed as Fe2O3; 0.001 to 0.018 wt. % CoO; 0 or less than 0.0008 wt. % Se; and 0.028 to 0.2 wt. % NiO.
    Type: Application
    Filed: April 25, 2002
    Publication date: October 24, 2002
    Applicant: NIPPON SHEET GLASS CO., LTD.
    Inventors: Hiromitsu Seto, Yukihito Nagashima, Isamu Kuroda, Shigekazu Yoshii
  • Patent number: 6461736
    Abstract: Light-colored high-transmittance glass is provided which is made of a composition containing, as coloring components, on a weight percent basis, 0.02 to 0.06% (excluding 0.06%) total iron oxide based on Fe2O3, less than 0.024% FeO, and 0 to 0.5% cerium oxide and having a ratio of FeO based on Fe2O3 to the total iron oxide of less than 40%. The light-colored high-transmittance glass has a solar radiation transmittance of at least 87.5% and a visible light transmittance measured with the illuminant C of at least 90% when having a thickness of 3.2 mm. A glass sheet with a conductive film also is provided which includes a transparent conductive film formed on a surface of a glass sheet formed of the light-colored high-transmittance glass.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: October 8, 2002
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Yukihito Nagashima, Akihiro Koyama, Isamu Kuroda, Masahiro Hirata, Masato Hyodo, Koichiro Nakamura
  • Patent number: 6395660
    Abstract: An ultraviolet/infrared absorbent low transmittance glass consists of base glass, and colorants. The base glass comprises 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; greater than 2 to less than or equal to 10 wt. % MgO; 5 to 15 wt. % CaO wherein a total amount of MgO and CaO is 7 to 15 wt. %; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O wherein a total amount of Na2O and K2O is 10 to 20 wt. %; and 0 to 5 wt. % B2O3. The colorants without Se is formed of 1.25 to 2.2 wt. % total iron oxide (T—Fe2O3) expressed as Fe2O3; 0.001 to 0.03 wt. % CoO; and 0.003 to 0.2 wt. % NiO. The glass has a turquoise blue or deep green color, and exhibits low or middle visible light transmittance, low total solar energy transmittance and low ultraviolet transmittance.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: May 28, 2002
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Hiromitsu Seto, Yukihito Nagashima, Isamu Kuroda, Shigekazu Yoshii
  • Patent number: 6046122
    Abstract: An ultraviolet and infrared radiation absorbing glass is disclosed, comprising, in % by weight:basic glass components comprising65 to 80% SiO.sub.2,0 to 5% Al.sub.2 O.sub.3,0 to 10% MgO,5 to 15% CaO,10 to 18% Na.sub.2 O,0 to 5% K.sub.2 O,5 to 15% MgO+CaO,10 to 20% Na.sub.2 O+K.sub.2 O,0 to 5% B.sub.2 O.sub.3, and0.07 to 0.18% SO.sub.3, andcoloring components comprising0.40 to 0.90% total ion oxide (T-Fe.sub.2 O.sub.3) in terms of Fe.sub.2 O.sub.3,1.0 to 2.0% CeO.sub.2, and0 to 1.0% TiO.sub.2,with 27 to 40% of said T-Fe.sub.2 O.sub.3 being FeO in terms of Fe.sub.2 O.sub.3.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: April 4, 2000
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Yukihito Nagashima, Nobuyuki Takatsuki, Isamu Kuroda
  • Patent number: 5858894
    Abstract: Green-tinted ultraviolet and infrared radiation absorbing glass suitable for use as a windowpane of vehicles, such as automobiles or buildings, is disclosed. The ultraviolet and infrared radiation absorbing glass comprises, in % by weight:basic glass components comprising65 to 80% SiO.sub.2,0 to 5% Al.sub.2 O.sub.3,0 to 10% MgO,5 to 15% CaO,10 to 18% of Na.sub.2 O,0 to 5% K.sub.2 O,5 to 15% MgO+CaO,10 to 20% Na.sub.2 O+K.sub.2 O, and0 to 5% B.sub.2 O.sub.3 ; andcoloring components comprising0.40 to 0.70% total iron oxide (T--Fe.sub.2 O.sub.3) in terms of Fe.sub.2 O.sub.3,1.4 to 1.7% of CeO.sub.2, and0 to 0.5t% of TiO.sub.2,wherein 27 to 40 wt% of the T--Fe.sub.2 O.sub.3 in terms of Fe.sub.2 O.sub.3 is FeO.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: January 12, 1999
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Yukihito Nagashima, Isamu Kuroda
  • Patent number: 5776846
    Abstract: Ultraviolet- and infrared-absorbing glass comprising: as basic glass components, 65 to 80% by weight of SiO.sub.2, 0 to 5% by weight of Al.sub.2 O.sub.3, 0 to 10% by weight of MgO, 5 to 15% by weight of CaO, 10 to 18% by weight of Na.sub.2 O, 0 to 5% by weight of K.sub.2 O, 5 to 15% by weight in total of MgO and CaO, 10 to 20% by weight in total of Na.sub.2 O and K.sub.2 O, and 0 to 5% by weight of B.sub.2 O.sub.3 ; and in the first embodiment, as coloring components, 0.25 to 0.45% by weight, in terms of Fe.sub.2 O.sub.3, of total iron oxide (T-Fe.sub.2 O.sub.3) having an FeO/T-Fe.sub.2 O.sub.3 ratio, in terms of Fe.sub.2 O.sub.3, of 15.5 to 25.0%, 0.8 to 2.0% by weight of CeO.sub.2, 0 to 1.0% by weight of TiO.sub.2, 0 to 0.005% by weight of CoO, and 0.0005 to 0.005% by weight of Se; or in the second embodiment, as coloring components, 0.25 to 0.5% by weight, in terms of Fe.sub.2 O.sub.3, of total iron oxide (T-Fe.sub.2 O.sub.3) having an FeO/T-Fe.sub.2 O.sub.3 ratio, in terms of Fe.sub.2 O.sub.3, of 5.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: July 7, 1998
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Koichi Sakaguchi, Yukihito Nagashima, Isamu Kuroda, Shigekazu Yoshii