Sign In to Follow Application
View All Documents & Correspondence
View All Documents & Correspondence
Method For Producing Coil Spring And Suspension Device For Saddle Ride Type Vehicle
Abstract: This method for producing a coil spring (20) comprises: a preparation step for preparing a coil spring (30) with a free length of L1 and a D/d value of 5.5-10, the D/d value being obtained by dividing a coil mean diameter D with a wire diameter d; a compression step for compressing the coil spring (30) with a compression ratio of 0.45-0.7, the compression ratio being defined by (L1-L2)/L1 where the length to which the coil spring (30) is compressed is L2; and a stress shot peening step for shot peening at least the inner circumferential surface of the coil spring (30) while maintaining the compressed state of the coil spring (30).
Get Free WhatsApp Updates!
Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
15 March 2022
Publication Number
12/2022
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
patent@depenning.com
Parent Application
Patent Number
Legal Status
Grant Date
2024-01-18
Renewal Date
Applicants
HITACHI ASTEMO, LTD.
2520 Takaba, Hitachinaka-shi, Ibaraki
3128503
Inventors
1. KAMEDA, Hirokatsu
c/o SHOWA CORPORATION, Asaba Plant, 2601, Matsubara, Fukuroi-shi, Shizuoka
4371194
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202247013963-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [15-03-2022(online)].pdf | 2022-03-15 |
| 2 | 202247013963-STATEMENT OF UNDERTAKING (FORM 3) [15-03-2022(online)].pdf | 2022-03-15 |
| 3 | 202247013963-REQUEST FOR EXAMINATION (FORM-18) [15-03-2022(online)].pdf | 2022-03-15 |
| 4 | 202247013963-FORM 18 [15-03-2022(online)].pdf | 2022-03-15 |
| 5 | 202247013963-FORM 1 [15-03-2022(online)].pdf | 2022-03-15 |
| 6 | 202247013963-DRAWINGS [15-03-2022(online)].pdf | 2022-03-15 |
| 7 | 202247013963-DECLARATION OF INVENTORSHIP (FORM 5) [15-03-2022(online)].pdf | 2022-03-15 |
| 8 | 202247013963-COMPLETE SPECIFICATION [15-03-2022(online)].pdf | 2022-03-15 |
| 9 | 202247013963.pdf | 2022-03-19 |
| 10 | 202247013963-FORM-26 [07-05-2022(online)].pdf | 2022-05-07 |
| 11 | 202247013963-Proof of Right [13-06-2022(online)].pdf | 2022-06-13 |
| 12 | 202247013963-Correspondence_Form-26_12-07-2022.pdf | 2022-07-12 |
| 13 | 202247013963-Correspondence_Form-1_13-07-2022.pdf | 2022-07-13 |
| 14 | 202247013963-FORM 3 [12-08-2022(online)].pdf | 2022-08-12 |
| 15 | 202247013963-FER.pdf | 2022-11-02 |
| 16 | 202247013963-OTHERS [03-04-2023(online)].pdf | 2023-04-03 |
| 17 | 202247013963-Information under section 8(2) [03-04-2023(online)].pdf | 2023-04-03 |
| 18 | 202247013963-FER_SER_REPLY [03-04-2023(online)].pdf | 2023-04-03 |
| 19 | 202247013963-DRAWING [03-04-2023(online)].pdf | 2023-04-03 |
| 20 | 202247013963-CLAIMS [03-04-2023(online)].pdf | 2023-04-03 |
| 21 | 202247013963-PatentCertificate18-01-2024.pdf | 2024-01-18 |
| 22 | 202247013963-IntimationOfGrant18-01-2024.pdf | 2024-01-18 |
Search Strategy
| 1 | SearchHistory(16)E_28-10-2022.pdf |