Patents by Inventor Masaru Oosuga

Masaru Oosuga 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).

  • Belt-type continuous stepless speed changer
    Patent number: 8696499
    Abstract: A belt-type continuously variable transmission includes a primary sheave including a pair of first clamp surfaces, a secondary sheave including a pair of second clamp surfaces, and a belt endlessly wound between both of the primary and secondary sheaves. The belt includes contact surfaces clamped between the first clamp surfaces and between the second clamp surfaces. Powder having infusibility as a friction enhancing material is held on at least one of the first clamp surfaces of the primary sheave, the second clamp surfaces of the secondary sheave, and the contact surfaces of the belt.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: April 15, 2014
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Yousuke Ishida, Masaru Oosuga
  • Belt-type continuous stepless speed changer
    Patent number: 8425355
    Abstract: A belt-type continuously variable transmission includes a primary sheave including a pair of first clamp surfaces, a secondary sheave including a pair of second clamp surfaces, and a belt endlessly wound between both of the primary and secondary sheaves. The belt includes contact surfaces clamped between the first clamp surfaces and between the second clamp surfaces. Powder having infusibility as a friction enhancing material is held on at least one of the first clamp surfaces of the primary sheave, the second clamp surfaces of the secondary sheave, and the contact surfaces of the belt.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: April 23, 2013
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Yousuke Ishida, Masaru Oosuga
  • BELT-TYPE CONTINUOUS STEPLESS SPEED CHANGER
    Publication number: 20100099522
    Abstract: A belt-type continuously variable transmission includes a primary sheave including a pair of first clamp surfaces, a secondary sheave including a pair of second clamp surfaces, and a belt endlessly wound between both of the primary and secondary sheaves. The belt includes contact surfaces clamped between the first clamp surfaces and between the second clamp surfaces. Powder having infusibility as a friction enhancing material is held on at least one of the first clamp surfaces of the primary sheave, the second clamp surfaces of the secondary sheave, and the contact surfaces of the belt.
    Type: Application
    Filed: December 22, 2009
    Publication date: April 22, 2010
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Yousuke ISHIDA, Masaru OOSUGA
  • BELT-TYPE CONTINUOUS STEPLESS SPEED CHANGER
    Publication number: 20100099523
    Abstract: A belt-type continuously variable transmission includes a primary sheave including a pair of first clamp surfaces, a secondary sheave including a pair of second clamp surfaces, and a belt endlessly wound between both of the primary and secondary sheaves. The belt includes contact surfaces clamped between the first clamp surfaces and between the second clamp surfaces. Powder having infusibility as a friction enhancing material is held on at least one of the first clamp surfaces of the primary sheave, the second clamp surfaces of the secondary sheave, and the contact surfaces of the belt.
    Type: Application
    Filed: December 22, 2009
    Publication date: April 22, 2010
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Yousuke ISHIDA, Masaru OOSUGA
  • BELT-TYPE CONTINUOUS STEPLESS SPEED CHANGER
    Publication number: 20100099524
    Abstract: A belt-type continuously variable transmission includes a primary sheave including a pair of first clamp surfaces, a secondary sheave including a pair of second clamp surfaces, and a belt endlessly wound between both of the primary and secondary sheaves. The belt includes contact surfaces clamped between the first clamp surfaces and between the second clamp surfaces. Powder having infusibility as a friction enhancing material is held on at least one of the first clamp surfaces of the primary sheave, the second clamp surfaces of the secondary sheave, and the contact surfaces of the belt.
    Type: Application
    Filed: December 22, 2009
    Publication date: April 22, 2010
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Yousuke ISHIDA, Masaru OOSUGA
  • Belt-type continuously variable transmission
    Patent number: 7648435
    Abstract: A belt-type continuously variable transmission (15) includes a primary sheave (29) having a pair of first clamp surfaces (37a, 37b), a secondary sheave (30) having a pair of second clamp surfaces (51a, 51b), and a belt (31) endlessly wound between both the sheaves (29, 30). The belt (31) has contact surfaces (58a, 58b) clamped between the first clamp surfaces (37a, 37b) and between the second clamp surfaces (51a, 51b). Powder (64) having infusibility as a friction enhancing material is held on at least one of the first clamp surfaces (37a, 37b) of the primary sheave (29), the second clamp surfaces (51a, 51b) of the secondary sheave (30), and the contact surfaces (58a, 58b) of the belt (31).
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: January 19, 2010
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Yousuke Ishida, Masaru Oosuga