Patents by Inventor Toshihiko Kawamura
Toshihiko Kawamura 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: 12036857Abstract: The lower structure of an electric vehicle includes: an automatic transmission provided below a floor panel and in an intermediate portion in a right-left direction thereof; an inverter arranged between the automatic transmission and a floor side frame; and an attachment bracket for attaching the inverter to the floor panel. The attachment bracket has an outer shell structure including: an inner wall portion dividing the inverter and the automatic transmission; an outer wall portion dividing the inverter and the floor side frame; an upper wall portion; and a lower wall portion.Type: GrantFiled: February 7, 2022Date of Patent: July 16, 2024Assignee: MAZDA MOTOR CORPORATIONInventors: Hiroaki Kashihara, Yoshinori Ikeda, Daisuke Tsuji, Kohichi Tanimoto, Toshihiko Kawamura, Noriharu Yamasaki
-
Publication number: 20220305896Abstract: The lower structure of an electric vehicle includes: an automatic transmission provided below a floor panel and in an intermediate portion in a right-left direction thereof; an inverter arranged between the automatic transmission and a floor side frame; and an attachment bracket for attaching the inverter to the floor panel. The attachment bracket has an outer shell structure including: an inner wall portion dividing the inverter and the automatic transmission; an outer wall portion dividing the inverter and the floor side frame; an upper wall portion; and a lower wall portion.Type: ApplicationFiled: February 7, 2022Publication date: September 29, 2022Applicant: Mazda Motor CorporationInventors: Hiroaki KASHIHARA, Yoshinori IKEDA, Daisuke TSUJI, Kohichi TANIMOTO, Toshihiko KAWAMURA, Noriharu YAMASAKI
-
Patent number: 11446998Abstract: A front-side cross member and a rear-side cross member in a front portion of a rear floor are spaced apart from each other, on a top side of the rear floor, ends of the front-side cross member in the vehicle width direction are connected to respective lower ends of left and right brace members extending up and down, while the rear-side cross member is disposed on the rear floor from an underside of the rear floor. A high voltage component is disposed on a top face in the front portion of the rear floor between the front and rear-side cross members, the high voltage component is disposed rearwardly spaced apart from the front-side cross member and closer to the rear-side cross member, and the high voltage component is attached to the front-side cross member via a bracket that deforms under a load in the vehicle front-rear direction.Type: GrantFiled: August 17, 2020Date of Patent: September 20, 2022Assignee: MAZDA MOTOR CORPORATIONInventors: Yuto Kodama, Koji Yoshimura, Taichi Hirakawa, Toshihiko Kawamura, Harumitsu Kubota, Takeshi Sasabe
-
Patent number: 11308930Abstract: An electronic horn for use, e.g., in a vehicle, includes a piezoelectric element (52) that excites a plate-shaped oscillator (51). A resonator (7) is provided with an opening (71) and covers forward of the oscillator such that a resonance space (S) is defined between the resonator and the oscillator. An inner cylinder (62) and an outer conical housing (63) are provided concentrically around the resonator. A circular cover (8) covers the inner cylinder (62) and the outer conical housing (63) from the front, such that a buffer chamber (BR), at least one first sound amplifying chamber (MH1), and a second sound amplifying chamber (MH2) are defined around an entire circumference of the opening of the resonator.Type: GrantFiled: November 9, 2017Date of Patent: April 19, 2022Assignee: IMASEN ELECTRIC INDUSTRIAL CO., LTD.Inventors: Katsunori Uchimura, Koichi Toyama, Junjiro Yoshimura, Toshihiko Kawamura, Yoshio Miyata
-
Patent number: 11145286Abstract: An electronic horn includes a cover (8) on a front side of an intermediate element (6). A first passage (P1) within the horn is defined by a central portion (82) of the cover (8) that projects into a cylindrical interior of a cylindrical water-proofing wall (621). Second passages (P2, P3, P4) extend generally concentrically with respect to the first passage (P1) and are respectively defined by water-proofing walls (83, 84) that are formed on the cover (8) and project into the interior spaces of water-proofing walls (622, 633). The outermost second passage (P4) opens toward the forward direction. The first and second passages (P1-P4) extend in a back-and-forth path that prevents any rainwater, which has entered the interior of the horn through the opening of the outermost second passage (P4), from reaching a resonance space (7) defined between the resonator (7) and a sound-generating oscillator (51).Type: GrantFiled: February 23, 2018Date of Patent: October 12, 2021Assignee: IMASEN ELECTRIC INDUSTRIAL CO., LTD.Inventors: Katsunori Uchimura, Koichi Toyama, Yoshio Miyata, Tetsuo Momo, Toshihiko Kawamura, Junjiro Yoshimura
-
Publication number: 20210061081Abstract: A front-side cross member and a rear-side cross member in a front portion of a rear floor are spaced apart from each other, on a top side of the rear floor, ends of the front-side cross member in the vehicle width direction are connected to respective lower ends of left and right brace members extending up and down, while the rear-side cross member is disposed on the rear floor from an underside of the rear floor. A high voltage component is disposed on a top face in the front portion of the rear floor between the front and rear-side cross members, the high voltage component is disposed rearwardly spaced apart from the front-side cross member and closer to the rear-side cross member, and the high voltage component is attached to the front-side cross member via a bracket that deforms under a load in the vehicle front-rear direction.Type: ApplicationFiled: August 17, 2020Publication date: March 4, 2021Applicant: MAZDA MOTOR CORPORATIONInventors: Yuto KODAMA, Koji YOSHIMURA, Taichi HIRAKAWA, Toshihiko KAWAMURA, Harumitsu KUBOTA, Takeshi SASABE
-
Publication number: 20200320970Abstract: An electronic horn for use, e.g., in a vehicle, includes a piezoelectric element (52) that excites a plate-shaped oscillator (51). A resonator (7) is provided with an opening (71) and covers forward of the oscillator such that a resonance space (S) is defined between the resonator and the oscillator. An inner cylinder (62) and an outer conical housing (63) are provided concentrically around the resonator. A circular cover (8) covers the inner cylinder (62) and the outer conical housing (63) from the front, such that a buffer chamber (BR), at least one first sound amplifying chamber (MH1), and a second sound amplifying chamber (MH2) are defined around an entire circumference of the opening of the resonator.Type: ApplicationFiled: November 9, 2017Publication date: October 8, 2020Inventors: Katsunori UCHIMURA, Koichi TOYAMA, Junjiro YOSHIMURA, Toshihiko KAWAMURA, Yoshio MIYATA
-
Publication number: 20200066243Abstract: An electronic horn includes a cover (8) on a front side of an intermediate element (6). A first passage (P1) within the horn is defined by a central portion (82) of the cover (8) that projects into a cylindrical interior of a cylindrical water-proofing wall (621). Second passages (P2, P3, P4) extend generally concentrically with respect to the first passage (P1) and are respectively defined by water-proofing walls (83, 84) that are formed on the cover (8) and project into the interior spaces of water-proofing walls (622, 633). The outermost second passage (P4) opens toward the forward direction. The first and second passages (P1-P4) extend in a back-and-forth path that prevents any rainwater, which has entered the interior of the horn through the opening of the outermost second passage (P4), from reaching a resonance space (7) defined between the resonator (7) and a sound-generating oscillator (51).Type: ApplicationFiled: February 23, 2018Publication date: February 27, 2020Inventors: Katsunori UCHIMURA, Koichi TOYAMA, Yoshio MIYATA, Tetsuo MOMO, Toshihiko KAWAMURA
-
Patent number: 9950663Abstract: An electronic vehicle horn outputs a warning sound by exciting a diaphragm using a piezoelectric device that is driven with a composite signal generated, in part, by modulating a first fundamental square wave with a first modulating square wave and setting a frequency deviation at the time of the modulation in a predetermined range, modulating a second fundamental square wave with a second modulating square wave and setting a frequency deviation at the time of the modulation in a predetermined range, and generating the composite signal by mixing the modulated first fundamental square wave and the modulated second fundamental square wave.Type: GrantFiled: July 27, 2016Date of Patent: April 24, 2018Assignee: IMASEN ELECTRIC INDUSTRIAL CO., LTD.Inventors: Koichi Toyama, Toshihiko Kawamura, Takashi Yamada
-
Publication number: 20170028910Abstract: An electronic vehicle horn outputs a warning sound by exciting a diaphragm using a piezoelectric device that is driven with a composite signal generated, in part, by modulating a first fundamental square wave with a first modulating square wave and setting a frequency deviation at the time of the modulation in a predetermined range, modulating a second fundamental square wave with a second modulating square wave and setting a frequency deviation at the time of the modulation in a predetermined range, and generating the composite signal by mixing the modulated first fundamental square wave and the modulated second fundamental square wave.Type: ApplicationFiled: July 27, 2016Publication date: February 2, 2017Inventors: Koichi TOYAMA, Toshihiko KAWAMURA, Takashi YAMADA
-
Patent number: 8724293Abstract: Disclosed is a storage device comprising a positive electrode material containing graphite; a negative electrode material containing an oxide of at least one metal element selected from Ti, Zr, V, Cr, Mo, Mn, Fe, Co, Ni, Cu, Zn, Sn, Sb, Bi, W and Ta, which may preferably contains a metal oxide containing at least Ti as a metal element; and an electrolyte solution. This storage device has high capacitance and high discharge voltage, thereby having high energy. Consequently, this storage device can have high energy density, while being excellent in cycle performances and rate performances.Type: GrantFiled: October 19, 2007Date of Patent: May 13, 2014Assignee: Ishihara Sangyo Kaisha, Ltd.Inventors: Masaki Yoshio, Toshihiko Kawamura, Nariaki Moriyama, Masatoshi Honma, Tokuo Suita, Hirofumi Taniguchi, Tomoyuki Sotokawa
-
Publication number: 20100046143Abstract: Disclosed is a storage device comprising a positive electrode material containing graphite; a negative electrode material containing an oxide of at least one metal element selected from Ti, Zr, V, Cr, Mo, Mn, Fe, Co, Ni, Cu, Zn, Sn, Sb, Bi, W and Ta, which may preferably contains a metal oxide containing at least Ti as a metal element; and an electrolyte solution. This storage device has high capacitance and high discharge voltage, thereby having high energy. Consequently, this storage device can have high energy density, while being excellent in cycle performances and rate performances.Type: ApplicationFiled: October 19, 2007Publication date: February 25, 2010Inventors: Masaki Yoshio, Toshihiko Kawamura, Nariaki Moriyama, Masatoshi Honma, Tokuo Suita, Hirofumi Taniguchi, Tomoyuki Sotokawa
-
Patent number: 7018466Abstract: A concrete admixture or a mortar admixture which is obtained by mixing a silicate with an acid in the presence of water and then solidifying the mixture. It is preferable that the silicate is sodium silicate and the acid is a carboxylic acid. This admixture can improve a tensile strength of a concrete or a mortar. Since a concrete or a mortar containing the admixture, cement, an aggregate and water is high in tensile strength, it can advantageously be used in various concrete structures, concrete products or mortar products.Type: GrantFiled: January 10, 2005Date of Patent: March 28, 2006Assignees: Tobishima Corporation, Aston Co., Ltd.Inventors: Motoyuki Suzuki, Kazuhiro Kasai, Masato Terazawa, Kazuyuki Nishiura, Hisashi Ando, Toshihiko Kawamura
-
Publication number: 20050155524Abstract: A concrete admixture or a mortar admixture which is obtained by mixing a silicate with an acid in the presence of water and then solidifying the mixture. It is preferable that the silicate is sodium silicate and the acid is a carboxylic acid. This admixture can improve a tensile strength of a concrete or a mortar. Since a concrete or a mortar containing the admixture, cement, an aggregate and water is high in tensile strength, it can advantageously be used in various concrete structures, concrete products or mortar products.Type: ApplicationFiled: January 10, 2005Publication date: July 21, 2005Inventors: Motoyuki Suzuki, Kazuhiro Kasai, Masato Terazawa, Kazuyuki Nishiura, Hisashi Ando, Toshihiko Kawamura
-
Patent number: 6871670Abstract: In a metal bellows accumulator, a metallic bellows unit is disposed within a pressure space defined in a main shell, and one end of the metallic bellows unit is fixedly secured to one end wall of the main shell. The metallic bellows unit sections the pressure space into an outer chamber serving as a gas chamber in which a pressurized gas is enclosed, and an inner chamber serving as a liquid chamber communicating with a liquid port formed in the end wall of the main shell. A stopper (auxiliary shell) for limiting collapsing movement of the metallic bellows unit is disposed within the liquid chamber and has a communication passage hole. The liquid port always communicates with a liquid chamber to which an inner circumferential surface of a bellows portion of the metallic bellows unit is exposed via the communication passage hole.Type: GrantFiled: May 28, 2003Date of Patent: March 29, 2005Assignee: Advics Co., Ltd.Inventors: Kenichi Suzuki, Yasuo Takahara, Hiroshi Kondo, Toshihiko Kawamura
-
Publication number: 20040244857Abstract: In a metal bellows accumulator, a metallic bellows unit is disposed within a pressure space defined in a main shell, and one end of the metallic bellows unit is fixedly secured to one end wall of the main shell. The metallic bellows unit sections the pressure space into an outer chamber serving as a gas chamber in which a pressurized gas is enclosed, and an inner chamber serving as a liquid chamber communicating with a liquid port formed in the end wall of the main shell. A stopper (auxiliary shell) for limiting collapsing movement of the metallic bellows unit is disposed within the liquid chamber and has a communication passage hole. The liquid port always communicates with a liquid chamber to which an inner circumferential surface of a bellows portion of the metallic bellows unit is exposed via the communication passage hole.Type: ApplicationFiled: April 12, 2004Publication date: December 9, 2004Inventors: Kenichi Suzuki, Yasuo Takahara, Hiroshi Kondo, Toshihiko Kawamura
-
Patent number: 6715847Abstract: In the rotary pump, a high pressure outer circumference chamber, which is formed around an outer circumference of an outer rotor and communicates with a discharge port, presses radially inward first defined parts among the outer circumference of the outer rotor that are positioned radially outside second defined parts adjacent to teeth gap portions whose volume are largest and smallest among teeth gap portions communicating with an intake port. Teeth top clearance between the outer and inner rotors at the second defined part is reduced due to pressure difference between the discharge pressure applied to the first defined parts and the intake pressure applied to the second defined parts.Type: GrantFiled: January 24, 2002Date of Patent: April 6, 2004Assignee: Denso CorporationInventors: Takahiro Yamaguchi, Tomoo Harada, Takashi Sato, Hiroshi Kondo, Toshihiko Kawamura
-
Publication number: 20030183129Abstract: A concrete admixture or a mortar admixture which is obtained by mixing a silicate with an acid in the presence of water and then solidifying the mixture. It is preferable that the silicate is sodium silicate and the acid is a carboxylic acid. This admixture can improve a tensile strength of a concrete or a mortar. Since a concrete or a mortar containing the admixture, cement, an aggregate and water is high in tensile strength, it can advantageously be used in various concrete structures, concrete products or mortar products.Type: ApplicationFiled: March 14, 2003Publication date: October 2, 2003Applicants: MOTOYUKI SUZUKI, TOBISHIMA CORPORATION, ASTON CO., LTD.Inventors: Motoyuki Suzuki, Kazuhiro Kasai, Masato Terazawa, Kazuyuki Nishiura, Hisashi Ando, Toshihiko Kawamura
-
Publication number: 20020095934Abstract: In the rotary pump, a high pressure outer circumference chamber, which is formed around an outer circumference of an outer rotor and communicates with a discharge port, presses radially inward first defined parts among the outer circumference of the outer rotor that are positioned radially outside second defined parts adjacent to teeth gap portions whose volume are largest and smallest among teeth gap portions communicating with an intake port. Teeth top clearance between the outer and inner rotors at the second defined part is reduced due to pressure difference between the discharge pressure applied to the first defined parts and the intake pressure applied to the second defined parts.Type: ApplicationFiled: January 24, 2002Publication date: July 25, 2002Inventors: Takahiro Yamaguchi, Tomoo Harada, Takashi Sato, Hiroshi Kondo, Toshihiko Kawamura
-
Patent number: 6056014Abstract: The invention relates to a drainage collective pipe joint where wastewater flowing in a collective housing of multiple floors is subjected to swirl flow and is allowed to flow down. The drainage collective pipe joint comprises an upper vertical pipe connection port to connect an upper vertical pipe, a main body part having a taper pipe part formed in downward taper shape at lower side and installed at lower side of the upper vertical pipe connection port, a lower vertical pipe connection port installed at lower side of the main body part and capable of connecting a lower vertical pipe, at least one horizontal branch pipe connection port installed at the main body part and connected a horizontal branch pipe, and a plurality of drainage flow control guides projected from an inner circumferential wall at lower side of the horizontal branch pipe connection port of the main body part and capable of controlling the drainage flow.Type: GrantFiled: July 21, 1998Date of Patent: May 2, 2000Assignee: Noriatsu KojimaInventors: Noriatsu Kojima, Yozo Kako, Toshihiko Kawamura