EP0903831A3
Charging apparatus and charging system
Abstract
In a secondary battery charging system and charging apparatus, when using either a step-down method or a constant-current/constant-voltage method of charging a secondary battery, a switching regulator is used to vary the charging current supplied to a secondary battery in accordance with the duty cycle of one pulse, so that a voltage that exceeds a pre-established voltage value is not applied to the secondary battery.
Term
Term ended
Projected expiry passed 18 September 2018, 8 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| EP0798839A2 | Cites | European Patent Office (EPO) | AP | Search report | – |
| DE3404564A1 | Cites | Germany | A | Search report | 11-13,17-19 |
| US4016474A | Cites | United States of America | A | Search report | – |
| US5488282A | Cites | United States of America | A | Search report | 11-13,17-19 |
| PATENT ABSTRACTS OF JAPAN vol. 1997, no. 05 30 May 1997 (1997-05-30) | Non-patent | – | – | Search report | – |
27 members in 11 offices; this record represents the family
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 25466797 | Japan | A | |
| 25466797 | Japan | A | |
| 25466797 | Japan | – | |
| 25466797 | – | – | – |
| JP19970254667 | – | – | – |
Members27
| Document | Office | Kind | |
|---|---|---|---|
| CA2197462A1 | Canada | A1 | |
| WO9700540A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO9700540A1 | World Intellectual Property Organization (WIPO) | A1 | |
| JPH097643A | Japan | A | |
| AU6017096A | Australia | A | |
| AU6017096A | Australia | A | |
| TW312056B | Taiwan Province of China | B | |
| EP0788177A1 | European Patent Office (EPO) | A1 | |
| CN1163677A | China | A | |
| JP2743155B2 | Japan | B2 | |
| NZ309886A | New Zealand | A | |
| US5818202A | United States of America | A | |
| AU698354B2 | Australia | B2 | |
| HK1004844A1 | Hong Kong, China | A1 | |
| EP0903831A2 | European Patent Office (EPO) | A2 | |
| JPH1197074A | Japan | A | |
| CN1215240A | China | A | |
| EP0788177A4 | European Patent Office (EPO) | A4 | |
| HK1020234A1 | Hong Kong, China | A1 | |
| KR100262931B1 | Republic of Korea | B1 | |
| KR100262931B1 | Republic of Korea | B1 | |
| US6104165A | United States of America | A | |
| EP0903831A3This record | European Patent Office (EPO) | A3 | |
| TW408509B | Taiwan Province of China | B | |
| CA2197462C | Canada | C | |
| CN1152449C | China | C | |
| CN1157832C | China | C |
12 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Application deemed to be withdrawnWithdrawn18D | 18D | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA | STAA | |
| First examination report despatched17Q | 17Q | |
| Designation fees paidDE FI GB IT SEAKX | AKX | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAL;LT;LV;MK;RO;SIAX | AX | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | |
| Information provided on ipc code assigned before grant7H 02J 7/10 A, 7H 02J 7/00 BRIC1 | RIC1 | |
| Request for examination filed17P | 17P | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAL;LT;LV;MK;RO;SIAX | AX | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI |
Numbers
- Publication
- 0903831
- Publication, DOCDB
- 0903831
- Publication, EPODOC
- EP0903831
- Application
- 98307601
- Application, DOCDB
- 98307601
- Application, EPODOC
- EP19980307601
Titles3
- German
- Ladegerät und -system
- English
- Charging apparatus and charging system
- French
- Chargeur et système de charge
Classification
- CPC, 2
- H02J7/92
- H02J7/50
- IPC, 3
- H01M10 44
- H02J7 00
- H02J7 10
Designated states2
- Contracting states, 1
- Sweden
- Extension states, 1
- Slovenia