MOTOR AND DISK DRIVE APPARATUS
A motor includes a rotating portion including a sleeve portion and a stationary portion. The stationary portion includes a shaft component which includes an inner shaft portion and an outer shaft portion. A radial dynamic pressure generating groove array is provided on at least one surface of an inn...
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| creator | IGUCHI TAKURO NISHIMURA HIDEKI MIYAJIMA KAZUTO SHUTO TAKEYUKI IWASAKI SHUJI SEKII YOICHI TAMAOKA TAKEHITO SATO KAZUHIRO |
| description | A motor includes a rotating portion including a sleeve portion and a stationary portion. The stationary portion includes a shaft component which includes an inner shaft portion and an outer shaft portion. A radial dynamic pressure generating groove array is provided on at least one surface of an inner circumferential surface of the sleeve portion and an outer circumferential surface of the outer shaft portion, which define the radial gap. The radial dynamic pressure generating groove array includes an upper radial dynamic pressure generating groove array and a lower radial dynamic pressure generating groove array. A range of a fixing region in an axial direction between the inner shaft portion and the outer shaft portion in an interference fit state is included in a range between the upper radial dynamic pressure generating groove array and the lower radial dynamic pressure generating groove array. |
| format | Patent |
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The stationary portion includes a shaft component which includes an inner shaft portion and an outer shaft portion. A radial dynamic pressure generating groove array is provided on at least one surface of an inner circumferential surface of the sleeve portion and an outer circumferential surface of the outer shaft portion, which define the radial gap. The radial dynamic pressure generating groove array includes an upper radial dynamic pressure generating groove array and a lower radial dynamic pressure generating groove array. A range of a fixing region in an axial direction between the inner shaft portion and the outer shaft portion in an interference fit state is included in a range between the upper radial dynamic pressure generating groove array and the lower radial dynamic pressure generating groove array.</description><language>eng</language><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; DYNAMO-ELECTRIC MACHINES ; ELECTRICITY ; GENERATION ; INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; PHYSICS</subject><creationdate>2014</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20141113&DB=EPODOC&CC=US&NR=2014334035A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76419</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20141113&DB=EPODOC&CC=US&NR=2014334035A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>IGUCHI TAKURO</creatorcontrib><creatorcontrib>NISHIMURA HIDEKI</creatorcontrib><creatorcontrib>MIYAJIMA KAZUTO</creatorcontrib><creatorcontrib>SHUTO TAKEYUKI</creatorcontrib><creatorcontrib>IWASAKI SHUJI</creatorcontrib><creatorcontrib>SEKII YOICHI</creatorcontrib><creatorcontrib>TAMAOKA TAKEHITO</creatorcontrib><creatorcontrib>SATO KAZUHIRO</creatorcontrib><title>MOTOR AND DISK DRIVE APPARATUS</title><description>A motor includes a rotating portion including a sleeve portion and a stationary portion. The stationary portion includes a shaft component which includes an inner shaft portion and an outer shaft portion. A radial dynamic pressure generating groove array is provided on at least one surface of an inner circumferential surface of the sleeve portion and an outer circumferential surface of the outer shaft portion, which define the radial gap. The radial dynamic pressure generating groove array includes an upper radial dynamic pressure generating groove array and a lower radial dynamic pressure generating groove array. A range of a fixing region in an axial direction between the inner shaft portion and the outer shaft portion in an interference fit state is included in a range between the upper radial dynamic pressure generating groove array and the lower radial dynamic pressure generating groove array.</description><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>DYNAMO-ELECTRIC MACHINES</subject><subject>ELECTRICITY</subject><subject>GENERATION</subject><subject>INFORMATION STORAGE</subject><subject>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2014</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJDz9Q_xD1Jw9HNRcPEM9lZwCfIMc1VwDAhwDHIMCQ3mYWBNS8wpTuWF0twMym6uIc4euqkF-fGpxQWJyal5qSXxocFGBoYmxsYmBsamjobGxKkCACxyIiU</recordid><startdate>20141113</startdate><enddate>20141113</enddate><creator>IGUCHI TAKURO</creator><creator>NISHIMURA HIDEKI</creator><creator>MIYAJIMA KAZUTO</creator><creator>SHUTO TAKEYUKI</creator><creator>IWASAKI SHUJI</creator><creator>SEKII YOICHI</creator><creator>TAMAOKA TAKEHITO</creator><creator>SATO KAZUHIRO</creator><scope>EVB</scope></search><sort><creationdate>20141113</creationdate><title>MOTOR AND DISK DRIVE APPARATUS</title><author>IGUCHI TAKURO ; NISHIMURA HIDEKI ; MIYAJIMA KAZUTO ; SHUTO TAKEYUKI ; IWASAKI SHUJI ; SEKII YOICHI ; TAMAOKA TAKEHITO ; SATO KAZUHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2014334035A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2014</creationdate><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>DYNAMO-ELECTRIC MACHINES</topic><topic>ELECTRICITY</topic><topic>GENERATION</topic><topic>INFORMATION STORAGE</topic><topic>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>IGUCHI TAKURO</creatorcontrib><creatorcontrib>NISHIMURA HIDEKI</creatorcontrib><creatorcontrib>MIYAJIMA KAZUTO</creatorcontrib><creatorcontrib>SHUTO TAKEYUKI</creatorcontrib><creatorcontrib>IWASAKI SHUJI</creatorcontrib><creatorcontrib>SEKII YOICHI</creatorcontrib><creatorcontrib>TAMAOKA TAKEHITO</creatorcontrib><creatorcontrib>SATO KAZUHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>IGUCHI TAKURO</au><au>NISHIMURA HIDEKI</au><au>MIYAJIMA KAZUTO</au><au>SHUTO TAKEYUKI</au><au>IWASAKI SHUJI</au><au>SEKII YOICHI</au><au>TAMAOKA TAKEHITO</au><au>SATO KAZUHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MOTOR AND DISK DRIVE APPARATUS</title><date>2014-11-13</date><risdate>2014</risdate><abstract>A motor includes a rotating portion including a sleeve portion and a stationary portion. The stationary portion includes a shaft component which includes an inner shaft portion and an outer shaft portion. A radial dynamic pressure generating groove array is provided on at least one surface of an inner circumferential surface of the sleeve portion and an outer circumferential surface of the outer shaft portion, which define the radial gap. The radial dynamic pressure generating groove array includes an upper radial dynamic pressure generating groove array and a lower radial dynamic pressure generating groove array. A range of a fixing region in an axial direction between the inner shaft portion and the outer shaft portion in an interference fit state is included in a range between the upper radial dynamic pressure generating groove array and the lower radial dynamic pressure generating groove array.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS |
| title | MOTOR AND DISK DRIVE APPARATUS |
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