Patents by Inventor Seiji Norita
Seiji Norita 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).
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Patent number: 10113625Abstract: Disclosed is a shift power transmission apparatus for readily suppressing or avoiding size increase thereof. The apparatus includes an input shaft (22) receiving engine drive force, a hydraulic continuously variable transmission (30) driven by the input shaft (22), a planetary power transmission section (40) combining drive force from the input shaft (22) and output from the hydraulic continuously variable transmission (30) for outputting the combined drive force, and an output rotary member (24) outputting power to a travel apparatus. The planetary power transmission section (40) and the output rotary member (24) are arranged on a side of the hydraulic continuously variable transmission (30) associated with an engine-coupled side of the input shaft (22). The drive force is inputted to the planetary power transmission section (40) from a portion between the engine-coupled side and the hydraulic continuously variable transmission-coupled side of the input shaft (22).Type: GrantFiled: January 4, 2018Date of Patent: October 30, 2018Assignee: Kubota CorporationInventors: Yuji Kato, Seiji Ohkubo, Go Takaki, Seiji Norita, Takashi Okuyama, Kozo Nishikawa, Fumitake Okunishi, Yukifumi Yamanaka, Takahiro Uchi
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Publication number: 20180142770Abstract: Disclosed is a shift power transmission apparatus for readily suppressing or avoiding size increase thereof. The apparatus includes an input shaft (22) receiving engine drive force, a hydraulic continuously variable transmission (30) driven by the input shaft (22), a planetary power transmission section (40) combining drive force from the input shaft (22) and output from the hydraulic continuously variable transmission (30) for outputting the combined drive force, and an output rotary member (24) outputting power to a travel apparatus. The planetary power transmission section (40) and the output rotary member (24) are arranged on a side of the hydraulic continuously variable transmission (30) associated with an engine-coupled side of the input shaft (22). The drive force is inputted to the planetary power transmission section (40) from a portion between the engine-coupled side and the hydraulic continuously variable transmission-coupled side of the input shaft (22).Type: ApplicationFiled: January 4, 2018Publication date: May 24, 2018Inventors: Yuji Kato, Seiji Ohkubo, Go Takaki, Seiji Norita, Takashi Okuyama, Kozo Nishikawa, Fumitake Okunishi, Yukifumi Yamanaka, Takahiro Uchi
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Patent number: 9897185Abstract: Disclosed is a shift power transmission apparatus for readily suppressing or avoiding size increase thereof. The apparatus includes an input shaft (22) receiving engine drive force, a hydraulic continuously variable transmission (30) driven by the input shaft (22), a planetary power transmission section (40) combining drive force from the input shaft (22) and output from the hydraulic continuously variable transmission (30) for outputting the combined drive force, and an output rotary member (24) outputting power to a travel apparatus. The planetary power transmission section (40) and the output rotary member (24) are arranged on a side of the hydraulic continuously variable transmission (30) associated with an engine-coupled side of the input shaft (22). The drive force is inputted to the planetary power transmission section (40) from a portion between the engine-coupled side and the hydraulic continuously variable transmission-coupled side of the input shaft (22).Type: GrantFiled: January 20, 2016Date of Patent: February 20, 2018Assignee: Kubota CorporationInventors: Yuji Kato, Seiji Ohkubo, Go Takaki, Seiji Norita, Takashi Okuyama, Kozo Nishikawa, Fumitake Okunishi, Yukifumi Yamanaka, Takahiro Uchi
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Patent number: 9845857Abstract: Provided is a combine with a speed-change power transmission apparatus including: a hydraulic static continuously variable transmission unit that receives an input of drive force from an engine, and subjects the drive force to speed change; and a planetary power transmission unit that combines the drive force from the engine and an output from the continuously variable transmission unit and outputs a combined drive force to a travelling apparatus, wherein a power transmission case can be made lighter at low cost. In this combine, a continuously variable transmission case portion of a power transmission case, which houses a continuously variable transmission unit, is formed integrally with a planetary power transmission case portion of the power transmission case, which houses a planetary power transmission unit.Type: GrantFiled: February 25, 2014Date of Patent: December 19, 2017Assignee: Kubota CorporationInventors: Yuji Kato, Seiji Norita, Satoshi Nishida
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Publication number: 20160238118Abstract: Provided is a combine with a speed-change power transmission apparatus including: a hydraulic static continuously variable transmission unit that receives an input of drive force from an engine, and subjects the drive force to speed change; and a planetary power transmission unit that combines the drive force from the engine and an output from the continuously variable transmission unit and outputs a combined drive force to a travelling apparatus, wherein a power transmission case can be made lighter at low cost. In this combine, a continuously variable transmission case portion of a power transmission case, which houses a continuously variable transmission unit, is formed integrally with a planetary power transmission case portion of the power transmission case, which houses a planetary power transmission unit.Type: ApplicationFiled: February 25, 2014Publication date: August 18, 2016Inventors: Yuji Kato, Seiji Norita, Satoshi Nishida
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Publication number: 20160138693Abstract: Disclosed is a shift power transmission apparatus for readily suppressing or avoiding size increase thereof. The apparatus includes an input shaft (22) receiving engine drive force, a hydraulic continuously variable transmission (30) driven by the input shaft (22), a planetary power transmission section (40) combining drive force from the input shaft (22) and output from the hydraulic continuously variable transmission (30) for outputting the combined drive force, and an output rotary member (24) outputting power to a travel apparatus. The planetary power transmission section (40) and the output rotary member (24) are arranged on a side of the hydraulic continuously variable transmission (30) associated with an engine-coupled side of the input shaft (22). The drive force is inputted to the planetary power transmission section (40) from a portion between the engine-coupled side and the hydraulic continuously variable transmission-coupled side of the input shaft (22).Type: ApplicationFiled: January 20, 2016Publication date: May 19, 2016Inventors: Yuji Kato, Seiji Ohkubo, Go Takaki, Seiji Norita, Takashi Okuyama, Kozo Nishikawa, Fumitake Okunishi, Yukifumi Yamanaka, Takahiro Uchi
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Patent number: 9261182Abstract: Disclosed is a shift power transmission apparatus for readily suppressing or avoiding size increase thereof. The apparatus includes an input shaft (22) receiving engine drive force, a hydraulic continuously variable transmission (30) driven by the input shaft (22), a planetary power transmission section (40) combining drive force from the input shaft (22) and output from the hydraulic continuously variable transmission (30) for outputting the combined drive force, and an output rotary member (24) outputting power to a travel apparatus. The planetary power transmission section (40) and the output rotary member (24) are arranged on a side of the hydraulic continuously variable transmission (30) associated with an engine-coupled side of the input shaft (22). The drive force is inputted to the planetary power transmission section (40) from a portion between the engine-coupled side and the hydraulic continuously variable transmission-coupled side of the input shaft (22).Type: GrantFiled: March 27, 2012Date of Patent: February 16, 2016Assignee: Kubota CorporationInventors: Yuji Kato, Seiji Ohkubo, Go Takaki, Seiji Norita, Takashi Okuyama, Kozo Nishikawa, Fumitake Okunishi, Yukifumi Yamanaka, Takahiro Uchi
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Publication number: 20140155212Abstract: Disclosed is a shift power transmission apparatus for readily suppressing or avoiding size increase thereof. The apparatus includes an input shaft (22) receiving engine drive force, a hydraulic continuously variable transmission (30) driven by the input shaft (22), a planetary power transmission section (40) combining drive force from the input shaft (22) and output from the hydraulic continuously variable transmission (30) for outputting the combined drive force, and an output rotary member (24) outputting power to a travel apparatus. The planetary power transmission section (40) and the output rotary member (24) are arranged on a side of the hydraulic continuously variable transmission (30) associated with an engine-coupled side of the input shaft (22). The drive force is inputted to the planetary power transmission section (40) from a portion between the engine-coupled side and the hydraulic continuously variable transmission-coupled side of the input shaft (22).Type: ApplicationFiled: March 27, 2012Publication date: June 5, 2014Applicant: KUBOTA CORPORATIONInventors: Yuji Kato, Seiji Ohkubo, Go Takagi, Seiji Norita, Takashi Okuyama, Kozo Nishikawa, Fumitake Okunishi, Yukifumi Yamanaka, Takahiro Uchi