By a News Reporter-Staff News Editor at Politics & Government Week -- A patent application by the inventor OBA, Ryo (Kobe-shi, JP), filed on March 8, 2017, was made available online on September 28, 2017, according to news reporting originating from Washington, D.C., by VerticalNews correspondents.
This patent application is assigned to Sumitomo Rubber Industries, Ltd.
The following quote was obtained by the news editors from the background information supplied by the inventors: "Field of the Invention
"The present invention relates to a pneumatic tire that improves wear resistance of shoulder land portions while suppressing sideslip on snow and ice.
"Description of Background Art
"Japanese Patent Laid-Open Publication No. HEI 9-277804 describes a pneumatic tire in which shoulder narrow grooves are provided in shoulder land portions. The entire contents of this publication are incorporated herein by reference."
In addition to the background information obtained for this patent application, VerticalNews journalists also obtained the inventor's summary information for this patent application: "According to one aspect of the present invention, a pneumatic tire includes a tread having a shoulder main groove continuously extending in a tire circumferential direction on a tread edge side, and a center main groove continuously extending in the tire circumferential direction on a tire axial direction inner side of the shoulder main groove such that the tread is divided into a shoulder land portion on a tire axial direction outer side of the shoulder main groove and a middle land portion between the shoulder main groove and the center main groove. The shoulder main groove and center main groove are formed such that a ratio W1/W2 of a tire axial direction width W1 of the shoulder land portion to a tire axial direction width W2 of the middle land portion is in a range of 6 to 2.4. The shoulder land portion has a shoulder narrow groove formed on a shoulder main groove side and continuously extending in the tire circumferential direction such that the shoulder narrow groove has a groove width smaller than a groove width of the shoulder main groove, and the tread is formed such that a first camber amount is in a range of 5.3% to 6.5% of a tread ground contact width, where the first camber amount is a tire radial direction distance between a tire equator position and a tread edge in a tread profile in a tire cross section that includes a tire rotation axis in a no-load normal state in which the pneumatic tire is mounted to a normal rim and is filled with air at a normal internal pressure."
URL and more information on this patent application, see: OBA, Ryo. Pneumatic Tire. Filed March 8, 2017 and posted September 28, 2017. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220170267031%22.PGNR.&OS=DN/20170267031&RS=DN/20170267031
Keywords for this news article include: Sumitomo Rubber Industries Ltd.
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