JPS50142223A - - Google Patents
Info
- Publication number
- JPS50142223A JPS50142223A JP49119907A JP11990774A JPS50142223A JP S50142223 A JPS50142223 A JP S50142223A JP 49119907 A JP49119907 A JP 49119907A JP 11990774 A JP11990774 A JP 11990774A JP S50142223 A JPS50142223 A JP S50142223A
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
- G10C3/00—Details or accessories
- G10C3/12—Keyboards; Keys
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S84/00—Music
- Y10S84/07—Electric key switch structure
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
- Toys (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00467207A US3855894A (en) | 1974-05-06 | 1974-05-06 | Key assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS50142223A true JPS50142223A (en) | 1975-11-15 |
Family
ID=23854810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49119907A Pending JPS50142223A (en) | 1974-05-06 | 1974-10-19 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3855894A (en) |
| JP (1) | JPS50142223A (en) |
| CA (1) | CA1000979A (en) |
| DE (1) | DE2453426A1 (en) |
| GB (1) | GB1441354A (en) |
| IT (1) | IT1021762B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3941023A (en) * | 1974-06-14 | 1976-03-02 | The Wurlitzer Company | Chord button assembly |
| US4091707A (en) * | 1975-12-22 | 1978-05-30 | Graber-Rogg, Inc. | Compact chord organ |
| US4140039A (en) * | 1976-04-12 | 1979-02-20 | Faulkner Alfred H | Hand held synthesizer |
| US4128035A (en) * | 1976-06-25 | 1978-12-05 | Norman Erickson | Keyboard assembly |
| US4136270A (en) * | 1977-03-24 | 1979-01-23 | Gte Automatic Electric Laboratories Incorporated | Actuator for pushbutton switch |
| US4205583A (en) * | 1977-12-12 | 1980-06-03 | Cbs Inc. | Keyboard construction for pianos |
| US4248130A (en) * | 1978-08-24 | 1981-02-03 | Norlin Industries, Inc. | Keyboard assembly |
| US4368364A (en) * | 1980-12-03 | 1983-01-11 | Load Cells Inc. | Key mechanism |
| US4346639A (en) * | 1981-07-27 | 1982-08-31 | Ernest Vagias | Thermoplastic key face for pianos or the like |
| US4500756A (en) * | 1982-03-19 | 1985-02-19 | Pratt-Read Corporation | Keyboard switch having a deformable membrane formed of cellular urethane |
| US4782734A (en) * | 1987-08-25 | 1988-11-08 | Rose Erma L | Keyboard keys for larger hands |
| JPH10171442A (en) * | 1996-12-16 | 1998-06-26 | Yamaha Corp | Keyboard instrument |
| US6087576A (en) * | 1997-02-24 | 2000-07-11 | Yamaha Corporation | Electronic musical keyboard apparatus resistant to yawing forces and rolling forces |
| JP3137038B2 (en) * | 1997-06-06 | 2001-02-19 | ヤマハ株式会社 | Keyboard device |
| JP2008003210A (en) * | 2006-06-21 | 2008-01-10 | Yamaha Corp | Keyboard device of electronic keyboard musical instrument |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4521326Y1 (en) * | 1966-02-23 | 1970-08-25 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA737203A (en) * | 1966-06-28 | The Wurlitzer Company | Sharp key cap | |
| US3205754A (en) * | 1965-09-14 | Becwar keys | ||
| US2117002A (en) * | 1936-07-18 | 1938-05-10 | Hammond Laurens | Keyboard for musical instruments |
| US2832251A (en) * | 1953-07-07 | 1958-04-29 | Wurlitzer Co | Organ key |
| US3110211A (en) * | 1959-08-06 | 1963-11-12 | Baldwin Piano Co | Electronic organ construction |
| US3120146A (en) * | 1961-06-02 | 1964-02-04 | Pratt Read & Co Inc | Musical instrument key |
| US3306152A (en) * | 1964-06-17 | 1967-02-28 | Paul A Klann | Keyboard |
| US3740448A (en) * | 1971-04-12 | 1973-06-19 | Wurlitzer Co | Organ drop-in key assembly |
| US3715950A (en) * | 1971-09-22 | 1973-02-13 | Pratt Read Corp | Key construction for keyboard instruments |
| US3797357A (en) * | 1972-09-20 | 1974-03-19 | Wurlitzer Co | Electronic musical instrument mechanical construction |
-
1974
- 1974-05-06 US US00467207A patent/US3855894A/en not_active Expired - Lifetime
- 1974-09-23 CA CA209,760A patent/CA1000979A/en not_active Expired
- 1974-09-27 GB GB4202174A patent/GB1441354A/en not_active Expired
- 1974-10-10 IT IT53472/74A patent/IT1021762B/en active
- 1974-10-19 JP JP49119907A patent/JPS50142223A/ja active Pending
- 1974-11-11 DE DE19742453426 patent/DE2453426A1/en not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4521326Y1 (en) * | 1966-02-23 | 1970-08-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| US3855894A (en) | 1974-12-24 |
| CA1000979A (en) | 1976-12-07 |
| IT1021762B (en) | 1978-02-20 |
| DE2453426A1 (en) | 1975-11-20 |
| GB1441354A (en) | 1976-06-30 |