Hitachi Elevator Engineering Co., Ltd.
Katsuta, JP· latest recorded location
Hitachi Elevator Engineering Co., Ltd. is named on 4 US grants and 0 published applications in this corpus. Its most frequent classification is B66B (Elevators).
- Granted patents
- 4
- Published applications
- 0
- Inventors
- 9
- Granted in 2026 so far
- 0
- Most recent grant
- 20 Aug 1991
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
By publication year.
Technology areas
Share of 4 documents
Recent patents
- Indicating apparatus for passenger conveyor, indicating body used therefor and method of assembling the apparatus20 Aug 1991US 5,040,659 A
- Passenger conveyor with unitary balustrade panel support members11 Apr 1989US 4,819,781 A
- Frame of passenger conveyor14 Mar 1989US 4,811,829 A
- Passenger conveyor23 Jun 1987US 4,674,619 A
No published applications.
Most cited
By later US patents
- Passenger conveyor with unitary balustrade panel support members19US 4,819,781 A1989
- Frame of passenger conveyor17US 4,811,829 A1989
- Passenger conveyor15US 4,674,619 A1987
- Indicating apparatus for passenger conveyor, indicating body used therefor and method of assembling the apparatus15US 5,040,659 A1991