Patents by Inventor Takaharu Miyazaki
Takaharu Miyazaki 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: 11840477Abstract: The present disclosure provides a novel glass composition that has a low permittivity and is suitable for mass production. A glass composition provided satisfies, in wt %, for example, 40?SiO2?60, 25?B2O3?45, 0<Al2O3?18, 0<R2O?5, and 0?RO?12, and satisfies at least one of: i) SiO2+B2O3?80 and SiO2+B2O3+Al2O3?99.9; and ii) SiO2+B2O3?78, SiO2+B2O3+Al2O3?99.9, and 0<RO<10. Another glass composition provided includes SiO2, B2O3, Al2O3, R2O, and 3<RO<8 at the same contents as the above, and satisfies SiO2+B2O3?75 and SiO2+B2O3+Al2O3<97, where R2O=Li2O+Na2O+K2O and RO=MgO+CaO+SrO.Type: GrantFiled: August 3, 2022Date of Patent: December 12, 2023Assignees: NIPPON SHEET GLASS COMPANY, LIMITED, UNITIKA LTD., UNITIKA GLASS FIBER CO., LTD.Inventors: Aya Nakamura, Hidetoshi Fukuchi, Junji Kurachi, Riku Sawai, Takaharu Miyazaki, Yoshito Nawa, Kohji Hattori
-
Patent number: 11773009Abstract: The present disclosure provides a novel glass composition that has a low permittivity and is suitable for mass production. A glass composition provided satisfies, in wt %, for example, 40?SiO2?60, 25?B2O3?45, 0<Al2O3?18, 0<R2O?5, and 0?RO?12, and satisfies at least one of: i) SiO2+B2O3?80 and SiO2+B2O3+Al2O3?99.9; and ii) SiO2+B2O3?78, SiO2+B2O3+Al2O3?99.9, and 0<RO<10. Another glass composition provided includes SiO2, B2O3, Al2O3, R2O, and 3<RO<8 at the same contents as the above, and satisfies SiO2+B2O3?75 and SiO2+B2O3+Al2O3<97, where R2O?Li2O+Na2O+K2O and RO?MgO+CaO+SrO.Type: GrantFiled: August 3, 2022Date of Patent: October 3, 2023Assignees: NIPPON SHEET GLASS COMPANY, LIMITED, UNITIKA LTD., UNITIKA GLASS FIBER CO., LTD.Inventors: Aya Nakamura, Hidetoshi Fukuchi, Junji Kurachi, Riku Sawai, Takaharu Miyazaki, Yoshito Nawa, Kohji Hattori
-
Publication number: 20220402811Abstract: The present disclosure provides a novel glass composition that has a low permittivity and is suitable for mass production. A glass composition provided satisfies, in wt %, for example, 40?SiO2?60, 25?B2O3?45, 0<Al2O3?18, 0<R2O?5, and 0?RO?12, and satisfies at least one of: i) SiO2+B2O3?80 and SiO2+B2O3+Al2O3?99.9; and ii) SiO2+B2O3?78, SiO2+B2O3+Al2O3?99.9, and 0<RO<10. Another glass composition provided includes SiO2, B2O3, Al2O3, R2O, and 3<RO<8 at the same contents as the above, and satisfies SiO2+B2O3?75 and SiO2+B2O3+Al2O3<97, where R2O=Li2O+Na2O+K2O and RO=MgO+CaO+SrO.Type: ApplicationFiled: August 3, 2022Publication date: December 22, 2022Inventors: Aya NAKAMURA, Hidetoshi FUKUCHI, Junji KURACHI, Riku SAWAI, Takaharu MIYAZAKI, Yoshito NAWA, Kohji HATTORI
-
Publication number: 20220371945Abstract: The present disclosure provides a novel glass composition that has a low permittivity and is suitable for mass production. A glass composition provided satisfies, in wt %, for example, 40?SiO2?60, 25?B2O3?45, 0<Al2O3?18, 0<R2O?5, and 0?RO?12, and satisfies at least one of: i) SiO2+B2O3?80 and SiO2+B2O3+Al2O3?99.9; and ii) SiO2+B2O3?78, SiO2+B2O3+Al2O3?99.9, and 0<RO<10. Another glass composition provided includes SiO2, B2O3, Al2O3, R2O, and 3<RO<8 at the same contents as the above, and satisfies SiO2+B2O3?75 and SiO2+B2O3+Al2O3<97, where R2O=Li2O+Na2O+K2O and RO=MgO+CaO+SrO.Type: ApplicationFiled: August 3, 2022Publication date: November 24, 2022Inventors: Aya NAKAMURA, Hidetoshi FUKUCHI, Junji KURACHI, Riku SAWAI, Takaharu MIYAZAKI, Yoshito NAWA, Kohji HATTORI
-
Publication number: 20220324751Abstract: The present disclosure provides a novel glass composition that has a low permittivity and is suitable for mass production. A glass composition provided satisfies, in wt %, for example, 40?SiO2?60, 25?B2O3?45, 0?Al2O3?18, 0<R2O?5, and 0?RO?12, and satisfies at least one of: i) SiO2+B2O3?80 and SiO2+B2O3+Al2O3?99.9; and ii) SiO2+B2O3?78, SiO2+B2O3+Al2O3?99.9, and 0<RO<10. Another glass composition provided includes SiO2, B2O3, Al2O3, R2O, and 3<RO<8 at the same contents as the above, and satisfies SiO2+B2O3?75 and SiO2+B2O3+Al2O3<97, where R2O?Li2O+Na2O+K2O and RO?MgO+CaO+SrO.Type: ApplicationFiled: June 19, 2020Publication date: October 13, 2022Inventors: Aya NAKAMURA, Hidetoshi FUKUCHI, Junji KURACHI, Riku SAWAI, Takaharu MIYAZAKI, Yoshito NAWA, Kohji HATTORI
-
Patent number: 11174191Abstract: A glass composition of the present disclosure includes, in wt %, 50?SiO2?56, 20?B2O3?30, 10?Al2O3?20, 3.5?MgO+CaO?10, and 0?R2O?1.0, further includes Fe2O3, and has a permittivity of less than 5.0 at a frequency of 1 MHz. R is at least one element selected from Li, Na, and K. The glass composition of the present disclosure is a low-permittivity glass composition with which the occurrence of fiber breakage during fiber forming can be reduced even when glass fibers to be formed have a small fiber diameter, and the occurrence of defects such as fiber breakage and fluffing during processing of the glass fibers can be reduced.Type: GrantFiled: May 18, 2018Date of Patent: November 16, 2021Assignees: NIPPON SHEET GLASS COMPANY, LIMITED, UNITIKA LTD., UNITIKA GLASS FIBER CO., LTD.Inventors: Yoshiyuki Inaka, Takaharu Miyazaki, Koji Hayashi, Riku Sawai, Yoshito Nawa, Daisuke Nishinaka, Tomoki Sekida
-
Patent number: 10622905Abstract: [Object] To realize a DC-DC converter that can reduce switching loss when zero voltage switching is not achieved. [Solution] When starting second control in conjunction with first control, a control unit (10) performs reduction of predetermined phase difference and increase of phase offset at the same time. A smallest value of output power of the DC-DC converter (CON1) performing reduction of the predetermined phase difference is lower than power at which a primary-side reactor (6) is saturated by current flowing through the primary-side reactor (6) under the first control and lower than power at which a secondary-side reactor (7) is saturated by current flowing through the secondary-side reactor (7) under the first control, at a desired output voltage under the first control.Type: GrantFiled: July 8, 2019Date of Patent: April 14, 2020Assignee: SHARP KABUSHIKI KAISHAInventor: Takaharu Miyazaki
-
Publication number: 20200087196Abstract: A glass composition of the present disclosure includes, in wt %, 50?SiO2?56, 20?B2O3?30, 10?Al2O3?20, 3.5?MgO+CaO?10, and 0?R2O?1.0, further includes Fe2O3, and has a permittivity of less than 5.0 at a frequency of 1 MHz. R is at least one element selected from Li, Na, and K. The glass composition of the present disclosure is a low-permittivity glass composition with which the occurrence of fiber breakage during fiber forming can be reduced even when glass fibers to be formed have a small fiber diameter, and the occurrence of defects such as fiber breakage and fluffing during processing of the glass fibers can be reduced.Type: ApplicationFiled: May 18, 2018Publication date: March 19, 2020Inventors: Yoshiyuki INAKA, Takaharu MIYAZAKI, Koji HAYASHI, Riku SAWAI, Yoshito NAWA, Daisuke NISHINAKA, Tomoki SEKIDA
-
Publication number: 20200021198Abstract: [Object] To realize a DC-DC converter that can reduce switching loss when zero voltage switching is not achieved. [Solution] When starting second control in conjunction with first control, a control unit (10) performs reduction of predetermined phase difference and increase of phase offset at the same time. A smallest value of output power of the DC-DC converter (CON1) performing reduction of the predetermined phase difference is lower than power at which a primary-side reactor (6) is saturated by current flowing through the primary-side reactor (6) under the first control and lower than power at which a secondary-side reactor (7) is saturated by current flowing through the secondary-side reactor (7) under the first control, at a desired output voltage under the first control.Type: ApplicationFiled: July 8, 2019Publication date: January 16, 2020Inventor: TAKAHARU MIYAZAKI
-
Publication number: 20190144329Abstract: A glass composition of the present disclosure includes, in wt %, 50?SiO2?54, 25?B2O3?30, 12?Al2O3?15, 0.5?MgO?1.9, 3.0?CaO?5.5, 0?ZnO?3.5, 0.1?Li2O?0.5, and 0.1?Na2O?0.3, and has a permittivity of less than 5.0 at a frequency of 1 MHz. The glass composition of the present disclosure has a low permittivity. The use of this glass composition can reduce the occurrence of devitrification and the inclusion of bubbles in glass fibers to be formed or in a shaped glass material to be formed even when the glass fibers have a small fiber diameter or the shaped glass material has a small thickness.Type: ApplicationFiled: November 1, 2016Publication date: May 16, 2019Applicants: Nippon Sheet Glass Company, Limited, Unitika Ltd., Unitika Glass Fiber Co., Ltd.Inventors: Yoshiyuki INAKA, Takaharu MIYAZAKI, Yoshito NAWA, Daisuke NISHINAKA, Tomoki SEKIDA
-
Patent number: 6927966Abstract: A laminated ceramic electronic component, for example, monolithic ceramic capacitor, in which the delamination does not occur during baking and having superior thermal shock and moisture load resistance characteristics is provided. A conductive paste, used with advantage to form an internal electrode of the laminated ceramic electronic component, and a laminated ceramic electronic component using the conductive paste is provided. The conductive paste is composed of a conductive powder which is primarily Ni, an organic vehicle, a compound A containing at least one of Mg and Ca and which is an organic acid metal salt, oxide powder, metal organic complex salt and/or an alkoxide, and a compound B, having a hydrolyzable reactive group containing at least one of Ti and Zr, which adheres to the surface of the conductive powder.Type: GrantFiled: January 27, 2003Date of Patent: August 9, 2005Assignee: Murata Manufacturing Co., Ltd.Inventors: Takaharu Miyazaki, Tsuyoshi Yamana
-
Patent number: 6849145Abstract: A ceramic green sheet having good surface roughness and few pinhole defects even when producing a thin ceramic green sheet is stably produced, to permit efficiently and securely manufacturing a multilayer ceramic electronic part in which deterioration of its life due to unevenness of interfaces between internal electrodes and ceramic layers and the occurrence of structural defects, such as delamination, bending of an electrode portion, etc, in a multilayer thin film to be suppressed. A dry sheet obtained by forming ceramic slurry to a sheet on a carrier film is smoothed by pressing using a plate press, a hydrostatic press or a calender roll under predetermined temperature and pressure conditions to improve the surface smoothness of the ceramic green sheet independently of the particle diameter of the ceramic and its dispersibility. An electrode paste is coated in a predetermine pattern on the thus-produced ceramic green sheet to form a sheet provided with an electrode.Type: GrantFiled: May 30, 2003Date of Patent: February 1, 2005Assignee: Murata Manufacturing Co. LtdInventors: Tsuyoshi Yamana, Takaharu Miyazaki
-
Patent number: 6692598Abstract: A ceramic green sheet having good surface roughness and few pinhole defects even when producing a thin ceramic green sheet is stably produced, to permit efficiently and securely manufacturing a multilayer ceramic electronic part in which deterioration of its life due to unevenness of interfaces between internal electrodes and ceramic layers and the occurrence of structural defects, such as delamination, bending of an electrode portion, etc., in a multilayer thin film to be suppressed. A dry sheet obtained by forming ceramic slurry to a sheet on a carrier film is smoothed by pressing using a plate press, a hydrostatic press or a calender roll under predetermined temperature and pressure conditions to improve the surface smoothness of the ceramic green sheet independently of the particle diameter of the ceramic and its dispersibility. An electrode paste is coated in a predetermine pattern on the thus-produced ceramic green sheet to form a sheet provided with an electrode.Type: GrantFiled: October 17, 2000Date of Patent: February 17, 2004Assignee: Murata Manufacturing Co. LtdInventors: Tsuyoshi Yamana, Takaharu Miyazaki
-
Publication number: 20040009333Abstract: A laminated ceramic electronic component, for example, monolithic ceramic capacitor, in which the delamination does not occur during baking and having superior thermal shock and moisture load resistance characteristics is provided. A conductive paste, used with advantage to form an internal electrode of the laminated ceramic electronic component, and a laminated ceramic electronic component using the conductive paste is provided. The conductive paste is composed of a conductive powder which is primarily Ni, an organic vehicle, a compound A containing at least one of Mg and Ca and which is an organic acid metal salt, oxide powder, metal organic complex salt and/or an alkoxide, and a compound B, having a hydrolyzable reactive group containing at least one of Ti and Zr, which adheres to the surface of the conductive powder.Type: ApplicationFiled: January 27, 2003Publication date: January 15, 2004Applicant: Murata Manufacturing Co., Ltd.Inventors: Takaharu Miyazaki, Tsuyoshi Yamana
-
Patent number: 6673272Abstract: A laminated ceramic electronic component, for example, monolithic ceramic capacitor, in which the delamination does not occur during baking and having superior thermal shock and moisture load resistance characteristics is provided. A conductive paste, used with advantage to form an internal electrode of the laminated ceramic electronic component, and a laminated ceramic electronic component using the conductive paste is provided. The conductive paste is composed of a conductive powder which is primarily Ni, an organic vehicle, a compound A containing at least one of Mg and Ca and which is an organic acid metal salt, oxide powder, metal organic complex salt and/or an alkoxide, and a compound B, having a hydrolyzable reactive group containing at least one of Ti and Zr, which adheres to the surface of the conductive powder.Type: GrantFiled: July 5, 2001Date of Patent: January 6, 2004Assignee: Murata Manufacturing Co., Ltd.Inventors: Takaharu Miyazaki, Tsuyoshi Yamana
-
Publication number: 20030230374Abstract: A ceramic green sheet having good surface roughness and few pinhole defects even when producing a thin ceramic green sheet is stably produced, to permit efficiently and securely manufacturing a multilayer ceramic electronic part in which deterioration of its life due to unevenness of interfaces between internal electrodes and ceramic layers and the occurrence of structural defects, such as delamination, bending of an electrode portion, etc, in a multilayer thin film to be suppressed. A dry sheet obtained by forming ceramic slurry to a sheet on a carrier film is smoothed by pressing using a plate press, a hydrostatic press or a calender roll under predetermined temperature and pressure conditions to improve the surface smoothness of the ceramic green sheet independently of the particle diameter of the ceramic and its dispersibility. An electrode paste is coated in a predetermine pattern on the thus-produced ceramic green sheet to form a sheet provided with an electrode.Type: ApplicationFiled: May 30, 2003Publication date: December 18, 2003Applicant: Murata Manufacturing Co., Ltd.Inventors: Tuyoshi Yamana, Takaharu Miyazaki
-
Publication number: 20030064210Abstract: A laminated ceramic electronic component, for example, monolithic ceramic capacitor, in which the delamination does not occur during baking and having superior thermal shock and moisture load resistance characteristics is provided. A conductive paste, used with advantage to form an internal electrode of the laminated ceramic electronic component, and a laminated ceramic electronic component using the conductive paste is provided. The conductive paste is composed of a conductive powder which is primarily Ni, an organic vehicle, a compound A containing at least one of Mg and Ca and which is an organic acid metal salt, oxide powder, metal organic complex salt and/or an alkoxide, and a compound B, having a hydrolyzable reactive group containing at least one of Ti and Zr, which adheres to the surface of the conductive powder.Type: ApplicationFiled: July 5, 2001Publication date: April 3, 2003Applicant: Murata Manufacturing Co., Ltd.Inventors: Takaharu Miyazaki, Tsuyoshi Yamana
-
Patent number: 6478882Abstract: A laminated ceramic electronic component, such as a laminated ceramic capacitor, having superior heat shock resistance and humidity loading resistance is provided, in which no delamination occurs during a firing step. A conductive paste advantageously used for forming internal electrodes and a laminated ceramic electronic component using the conductive paste are provided. The conductive paste is a conductive powder primarily composed of Ni; an organic vehicle; a compound A which is at least one of an organic acid metal salt, an organic metal complex salt and an alkoxide, and which contains at least one of Mg, Ca and Ba; and a hydrolyzed compound B containing at least one of Al and Si; wherein the hydrolyzed compound B is adhered to the surface of the conductive powder.Type: GrantFiled: June 27, 2001Date of Patent: November 12, 2002Assignee: Murata Manufacturing Co. Ltd.Inventors: Takaharu Miyazaki, Tsuyoshi Yamana
-
Publication number: 20020124910Abstract: A laminated ceramic electronic component, such as a laminated ceramic capacitor, having superior heat shock resistance and humidity loading resistance is provided, in which no delamination occurs during a firing step. A conductive paste advantageously used for forming internal electrodes and a laminated ceramic electronic component using the conductive paste are provided. The conductive paste is a conductive powder primarily composed of Ni; an organic vehicle; a compound A which is at least one of an organic acid metal salt, an organic metal complex salt and an alkoxide, and which contains at least one of Mg, Ca and Ba; and a hydrolyzed compound B containing at least one of Al and Si; wherein the hydrolyzed compound B is adhered to the surface of the conductive powder.Type: ApplicationFiled: June 27, 2001Publication date: September 12, 2002Applicant: Murata Manufacturing Co., Ltd.Inventors: Takaharu Miyazaki, Tsuyoshi Yamana
-
Patent number: 6442813Abstract: A monolithic ceramic capacitor includes a plurality of dielectric ceramic layers, a plurality of inner electrodes formed between the dielectric ceramic layers in such a manner that one end of each inner electrode is exposed out of either end of the dielectric ceramic layers, and outer electrodes electrically connected with the exposed inner electrodes; in which the inner electrodes each are made of a base metal, and Si oxide layers or layers comprising an Si oxide and at lest one component that constitutes said dielectric ceramic layers and said inner electrodes are formed adjacent to the inner electrodes. The capacitor has excellent thermal impact resistance and wet load resistance characteristics. A producing method includes firing a green sheet laminate including a metal inner electrode at an oxygen partial pressure of about said equilibrium oxygen partial pressure of the metal to the metal oxide.Type: GrantFiled: April 9, 1998Date of Patent: September 3, 2002Assignee: Murata Manufacturing Co., Ltd.Inventors: Norihiko Sakamoto, Harunobu Sano, Takaharu Miyazaki