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“Ball Screw And Manufacturing Method Of Nut For Ball Screw”
Abstract: Provided is a ball screw in which an outer 5 circumferential formation such as a flange is formed at a portion facing a ball circulating passage out of outer circumferential surface of a nut. The ball screw (1) includes: a screw shaft (3) having on its outer circumferential surface a screw groove (3a); a nut (5) having on its inner circumferential surface a screw groove (5a) facing the screw groove (3a); a plurality of balls (9) rollably loaded in a spiral ball rolling passage (7) formed by the both screw grooves (3a,5a); and a ball circulating passage (11) to return the balls (9) from a start point to an end point of the ball rolling passage (7) for recirculation of the balls. The ball circulating passage (11) is a concaved groove formed by concaving a groove on a part of the cylindrical inner circumferential surface of the nut (5) by plastic working. Then, a flange (13) is integrally provided at a portion facing the ball circulating passage (11) and the screw groove (5a).
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
24 August 2012
Publication Number
51/2014
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2020-09-25
Renewal Date
Applicants
NSK LTD.
6-3 Ohsaki 1-chome Shinagawa-ku Tokyo 141-8560 Japan
Inventors
1. HARADA Toru
c/o NSK Ltd. 5-50 Kugenumashinmei 1-chome Fujisawa-shi Kanagawa 2518501 Japan
2. HASHIMOTO Koji
c/o NSK Ltd. 5-50 Kugenumashinmei 1-chome Fujisawa-shi Kanagawa 2518501 Japan
3. ITO Tsuyoshi
c/o NSK Ltd. 5-50 Kugenumashinmei 1-chome Fujisawa-shi Kanagawa 2518501 Japan
4. YAMASHITA Tomofumi
c/o NSK Ltd. 5-50 Kugenumashinmei 1-chome Fujisawa-shi Kanagawa 2518501 Japan
5. AOKI Naoya
c/o NSK Ltd. 5-50 Kugenumashinmei 1-chome Fujisawa-shi Kanagawa 2518501 Japan
Specification
PLEASE SEE THE SPECIFICATION ATTACHED.
Documents
Orders
| Section | Controller | Decision Date |
|---|---|---|
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 7372-CHENP-2012-RELEVANT DOCUMENTS [16-09-2023(online)].pdf | 2023-09-16 |
| 1 | Form-5.pdf | 2012-08-30 |
| 2 | Form-3.pdf | 2012-08-30 |
| 2 | 7372-CHENP-2012-RELEVANT DOCUMENTS [30-09-2022(online)].pdf | 2022-09-30 |
| 3 | Form-1.pdf | 2012-08-30 |
| 3 | 7372-CHENP-2012-Abstract_Granted 347743_25-09-2020.pdf | 2020-09-25 |
| 4 | Drawings.pdf | 2012-08-30 |
| 4 | 7372-CHENP-2012-Claims_Granted 347743_25-09-2020.pdf | 2020-09-25 |
| 5 | 7372-CHENP-2012-Description_Granted 347743_25-09-2020.pdf | 2020-09-25 |
| 5 | 7372-CHENP-2012 ENGLISH TRANSLATION 31-08-2012.pdf | 2012-08-31 |
| 6 | 7372-CHENP-2012-Drawings_Granted 347743_25-09-2020.pdf | 2020-09-25 |
| 6 | 7372-CHENP-2012 FORM-18 31-08-2012.pdf | 2012-08-31 |
| 7 | 7372-CHENP-2012-IntimationOfGrant25-09-2020.pdf | 2020-09-25 |
| 7 | 7372-CHENP-2012 FORM-13 31-08-2012.pdf | 2012-08-31 |
| 8 | 7372-CHENP-2012-Marked up Claims_Granted 347743_25-09-2020.pdf | 2020-09-25 |
| 8 | 7372-CHENP-2012 CORRESPONDENCE. OTHERS 31-08-2012.pdf | 2012-08-31 |
| 9 | 7372-CHENP-2012-PatentCertificate25-09-2020.pdf | 2020-09-25 |
| 9 | 7372-CHENP-2012 CORRESPONDENCE OTHERS. 31-08-2012.pdf | 2012-08-31 |
| 10 | 7372-CHENP-2012 CORRESPONDENCE OTHERS 31-08-2012.pdf | 2012-08-31 |
| 10 | 7372-CHENP-2012-Written submissions and relevant documents [24-09-2020(online)].pdf | 2020-09-24 |
| 11 | 7372-CHENP-2012 AMENDED PAGES OF SPECIFICATION 31-08-2012.pdf | 2012-08-31 |
| 11 | 7372-CHENP-2012-Correspondence to notify the Controller [28-08-2020(online)].pdf | 2020-08-28 |
| 12 | 7372-CHENP-2012 POWER OF ATTORNEY 12-10-2012.pdf | 2012-10-12 |
| 12 | 7372-CHENP-2012-FORM-26 [28-08-2020(online)].pdf | 2020-08-28 |
| 13 | 7372-CHENP-2012 FORM-3 12-10-2012.pdf | 2012-10-12 |
| 13 | 7372-CHENP-2012-US(14)-HearingNotice-(HearingDate-10-09-2020).pdf | 2020-08-04 |
| 14 | 7372-CHENP-2012 FORM-1 12-10-2012.pdf | 2012-10-12 |
| 14 | 7372-CHENP-2012-ABSTRACT [24-04-2018(online)].pdf | 2018-04-24 |
| 15 | 7372-CHENP-2012 CORRESPONDENCE OTHERS 12-10-2012.pdf | 2012-10-12 |
| 15 | 7372-CHENP-2012-CLAIMS [24-04-2018(online)].pdf | 2018-04-24 |
| 16 | 7372-CHENP-2012 FORM -3 28-03-2014.pdf | 2014-03-28 |
| 16 | 7372-CHENP-2012-DRAWING [24-04-2018(online)].pdf | 2018-04-24 |
| 17 | 7372-CHENP-2012 CORRESPONDENCE OTHERS 28-03-2014.pdf | 2014-03-28 |
| 17 | 7372-CHENP-2012-FER_SER_REPLY [24-04-2018(online)].pdf | 2018-04-24 |
| 18 | 7372-CHENP-2012 FORM-3 01-08-2014.pdf | 2014-08-01 |
| 18 | 7372-CHENP-2012-FORM 3 [24-04-2018(online)]-1.pdf | 2018-04-24 |
| 19 | 7372-CHENP-2012-FORM 3 [24-04-2018(online)].pdf | 2018-04-24 |
| 19 | 7372-CHENP-2012 CORRESPONDENCE OTHERS 01-08-2014.pdf | 2014-08-01 |
| 20 | 7372-CHENP-2012-Information under section 8(2) (MANDATORY) [24-04-2018(online)].pdf | 2018-04-24 |
| 20 | ABSTRACT.pdf | 2014-11-22 |
| 21 | 7372-CHENP-2012-OTHERS [24-04-2018(online)].pdf | 2018-04-24 |
| 21 | abstract 7372-CHENP-2012.jpg | 2014-11-22 |
| 22 | 7372-CHENP-2012-FER.pdf | 2017-11-27 |
| 22 | Correspondence by Agent_Translation Certificate_12-03-2018.pdf | 2018-03-12 |
| 23 | 7372-CHENP-2012-Verified English translation (MANDATORY) [26-02-2018(online)].pdf | 2018-02-26 |
| 24 | 7372-CHENP-2012-FER.pdf | 2017-11-27 |
| 24 | Correspondence by Agent_Translation Certificate_12-03-2018.pdf | 2018-03-12 |
| 25 | abstract 7372-CHENP-2012.jpg | 2014-11-22 |
| 25 | 7372-CHENP-2012-OTHERS [24-04-2018(online)].pdf | 2018-04-24 |
| 26 | ABSTRACT.pdf | 2014-11-22 |
| 26 | 7372-CHENP-2012-Information under section 8(2) (MANDATORY) [24-04-2018(online)].pdf | 2018-04-24 |
| 27 | 7372-CHENP-2012 CORRESPONDENCE OTHERS 01-08-2014.pdf | 2014-08-01 |
| 27 | 7372-CHENP-2012-FORM 3 [24-04-2018(online)].pdf | 2018-04-24 |
| 28 | 7372-CHENP-2012 FORM-3 01-08-2014.pdf | 2014-08-01 |
| 28 | 7372-CHENP-2012-FORM 3 [24-04-2018(online)]-1.pdf | 2018-04-24 |
| 29 | 7372-CHENP-2012 CORRESPONDENCE OTHERS 28-03-2014.pdf | 2014-03-28 |
| 29 | 7372-CHENP-2012-FER_SER_REPLY [24-04-2018(online)].pdf | 2018-04-24 |
| 30 | 7372-CHENP-2012 FORM -3 28-03-2014.pdf | 2014-03-28 |
| 30 | 7372-CHENP-2012-DRAWING [24-04-2018(online)].pdf | 2018-04-24 |
| 31 | 7372-CHENP-2012 CORRESPONDENCE OTHERS 12-10-2012.pdf | 2012-10-12 |
| 31 | 7372-CHENP-2012-CLAIMS [24-04-2018(online)].pdf | 2018-04-24 |
| 32 | 7372-CHENP-2012 FORM-1 12-10-2012.pdf | 2012-10-12 |
| 32 | 7372-CHENP-2012-ABSTRACT [24-04-2018(online)].pdf | 2018-04-24 |
| 33 | 7372-CHENP-2012 FORM-3 12-10-2012.pdf | 2012-10-12 |
| 33 | 7372-CHENP-2012-US(14)-HearingNotice-(HearingDate-10-09-2020).pdf | 2020-08-04 |
| 34 | 7372-CHENP-2012 POWER OF ATTORNEY 12-10-2012.pdf | 2012-10-12 |
| 34 | 7372-CHENP-2012-FORM-26 [28-08-2020(online)].pdf | 2020-08-28 |
| 35 | 7372-CHENP-2012 AMENDED PAGES OF SPECIFICATION 31-08-2012.pdf | 2012-08-31 |
| 35 | 7372-CHENP-2012-Correspondence to notify the Controller [28-08-2020(online)].pdf | 2020-08-28 |
| 36 | 7372-CHENP-2012 CORRESPONDENCE OTHERS 31-08-2012.pdf | 2012-08-31 |
| 36 | 7372-CHENP-2012-Written submissions and relevant documents [24-09-2020(online)].pdf | 2020-09-24 |
| 37 | 7372-CHENP-2012-PatentCertificate25-09-2020.pdf | 2020-09-25 |
| 37 | 7372-CHENP-2012 CORRESPONDENCE OTHERS. 31-08-2012.pdf | 2012-08-31 |
| 38 | 7372-CHENP-2012-Marked up Claims_Granted 347743_25-09-2020.pdf | 2020-09-25 |
| 38 | 7372-CHENP-2012 CORRESPONDENCE. OTHERS 31-08-2012.pdf | 2012-08-31 |
| 39 | 7372-CHENP-2012-IntimationOfGrant25-09-2020.pdf | 2020-09-25 |
| 39 | 7372-CHENP-2012 FORM-13 31-08-2012.pdf | 2012-08-31 |
| 40 | 7372-CHENP-2012-Drawings_Granted 347743_25-09-2020.pdf | 2020-09-25 |
| 40 | 7372-CHENP-2012 FORM-18 31-08-2012.pdf | 2012-08-31 |
| 41 | 7372-CHENP-2012-Description_Granted 347743_25-09-2020.pdf | 2020-09-25 |
| 41 | 7372-CHENP-2012 ENGLISH TRANSLATION 31-08-2012.pdf | 2012-08-31 |
| 42 | Drawings.pdf | 2012-08-30 |
| 42 | 7372-CHENP-2012-Claims_Granted 347743_25-09-2020.pdf | 2020-09-25 |
| 43 | 7372-CHENP-2012-Abstract_Granted 347743_25-09-2020.pdf | 2020-09-25 |
| 43 | Form-1.pdf | 2012-08-30 |
| 44 | 7372-CHENP-2012-RELEVANT DOCUMENTS [30-09-2022(online)].pdf | 2022-09-30 |
| 44 | Form-3.pdf | 2012-08-30 |
| 45 | 7372-CHENP-2012-RELEVANT DOCUMENTS [16-09-2023(online)].pdf | 2023-09-16 |
| 45 | Form-5.pdf | 2012-08-30 |
Search Strategy
| 1 | 7372-chenp-2012_31-08-2017.pdf |