Keyboard Type Patents (Class D17/1)
Combined with diverse article (Class D17/2)
Accordion (Class D17/3)
Organ or cabinet therefor (Class D17/5)
Piano or cabinet therefor (Class D17/7)
Element or attachment (Class D17/9)
  • Electronic musical keyboard
    Patent number: D320218
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: September 24, 1991
    Assignee: Casio Computer Co., Ltd.
    Inventor: Hiroyuki Kitazume
  • Electronic musical keyboard
    Patent number: D320611
    Type: Grant
    Filed: June 2, 1989
    Date of Patent: October 8, 1991
    Assignee: Casio Computer Co., Ltd.
    Inventor: Junichi Ono
  • Electronic musical keyboard
    Patent number: D320612
    Type: Grant
    Filed: June 28, 1989
    Date of Patent: October 8, 1991
    Assignee: Casio Computer Co., Ltd.
    Inventor: Yuji Ohki
  • Electronic musical keyboard
    Patent number: D320613
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: October 8, 1991
    Assignee: Casio Computer Co., Ltd.
    Inventor: Masaki Koide
  • Electronic musical keyboard
    Patent number: D320614
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: October 8, 1991
    Assignee: Casio Computer Co., Ltd.
    Inventor: Junichi Ono
  • Electronic musical keyboard
    Patent number: D320804
    Type: Grant
    Filed: June 28, 1989
    Date of Patent: October 15, 1991
    Assignee: Casio Computer Co., Ltd.
    Inventor: Yuji Ohki
  • Electronic music keyboard
    Patent number: D320996
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: October 22, 1991
    Assignee: Casio Computer Co., Ltd.
    Inventor: Masaki Koide
  • Electronic key board musical instrument
    Patent number: D322268
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: December 10, 1991
    Assignee: Yamaha Corporation
    Inventor: Yasuo Yamawaki
  • Electronic keyboard musical instrument
    Patent number: D322269
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: December 10, 1991
    Assignee: Yamaha Corporation
    Inventor: Yasuo Yamawaki
  • Toy piano
    Patent number: D322640
    Type: Grant
    Filed: October 20, 1989
    Date of Patent: December 24, 1991
    Assignee: Sight & Sound, Inc.
    Inventor: Zeb Billings
  • Portable electric piano
    Patent number: D322800
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: December 31, 1991
    Assignee: Gold Star Co., Ltd.
    Inventor: Chang S. Yun
  • Electronic music keyboard
    Patent number: D324230
    Type: Grant
    Filed: October 19, 1989
    Date of Patent: February 25, 1992
    Assignee: Casio Computer Co., Ltd.
    Inventor: Yoshitaka Naitoh
  • Electronic keyboard musical instrument
    Patent number: D325213
    Type: Grant
    Filed: June 19, 1990
    Date of Patent: April 7, 1992
    Assignee: Yamaha Corporation
    Inventor: Kazuyuki Mizushima
  • Electronic piano
    Patent number: D325214
    Type: Grant
    Filed: June 19, 1990
    Date of Patent: April 7, 1992
    Assignee: Yamaha Corporation
    Inventor: Yasuhiro Hoshina
  • Electronic keyboard musical instrument
    Patent number: D325215
    Type: Grant
    Filed: June 19, 1990
    Date of Patent: April 7, 1992
    Assignee: Yamaha Corporation
    Inventor: Michel Granger
  • Electronic keyboard musical instrument
    Patent number: D325596
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: April 21, 1992
    Assignee: Yamaha Corporation
    Inventor: Nobuki Sakagami
  • Electronic keyboard musical instrument
    Patent number: D325597
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: April 21, 1992
    Assignee: Yamaha Corporation
    Inventor: Nobuki Sakagami
  • Portable electronic organ
    Patent number: D325924
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: May 5, 1992
    Assignee: Goldstar Co., Ltd.
    Inventor: Sun I. Yu
  • Electronic keyboard musical instrument
    Patent number: D326106
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: May 12, 1992
    Assignee: Yamaha Corporation
    Inventor: Keizo Tatshumi
  • Electronic keyboard musical instrument
    Patent number: D326107
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: May 12, 1992
    Assignee: Yamaha Corporation
    Inventor: Eizo Amiya
  • Electronic piano
    Patent number: D326468
    Type: Grant
    Filed: August 13, 1990
    Date of Patent: May 26, 1992
    Assignee: Gold Star Co., Ltd.
    Inventor: Jin S. Jeon
  • Electronic keyboard musical instrument
    Patent number: D340469
    Type: Grant
    Filed: October 23, 1991
    Date of Patent: October 19, 1993
    Assignee: Yamaha Corporation
    Inventor: Tsutomu Nakada
  • Keyboard housing
    Patent number: D342086
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: December 7, 1993
    Assignee: Leading Technology, Inc.
    Inventors: Michael S. Jaeb, Scott Stropkay
  • Electronic musical instrument
    Patent number: D342274
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: December 14, 1993
    Assignee: Casio Computer Co., Ltd.
    Inventors: Yuji Ohki, Yukihiko Ida
  • Electronic harp
    Patent number: D342543
    Type: Grant
    Filed: June 11, 1991
    Date of Patent: December 21, 1993
    Inventor: Ron Reisman
  • Electronic keyboard musical instrument
    Patent number: D345369
    Type: Grant
    Filed: June 9, 1992
    Date of Patent: March 22, 1994
    Assignee: Yamaha Corporation
    Inventor: Masafumi Ito
  • Electronic keyboard musical instrument
    Patent number: D345370
    Type: Grant
    Filed: June 9, 1992
    Date of Patent: March 22, 1994
    Assignee: Yamaha Corporation
    Inventors: Mitsuru Miyamoto, Tomoaki Ida
  • Electronic keyboard musical instrument
    Patent number: D345371
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: March 22, 1994
    Assignee: Yamaha Corporation
    Inventor: Masafumi Ito
  • Electronic keyboard musical instrument
    Patent number: D345574
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: March 29, 1994
    Assignee: Yamaha Corporation
    Inventor: Kazuyuki Mizushima
  • Electronic musical keyboard
    Patent number: D345575
    Type: Grant
    Filed: December 15, 1992
    Date of Patent: March 29, 1994
    Assignee: Casio Computer Co., Ltd.
    Inventors: Kozo Hisanaga, Yukihiko Ida
  • Electronic keyboard musical instrument
    Patent number: D345753
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: April 5, 1994
    Assignee: Casio Computer Co., Ltd.
    Inventor: Hideaki Yamabe
  • Electronic keyboard musical instrument
    Patent number: D345754
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: April 5, 1994
    Assignee: Casio Computer Co., Ltd.
    Inventor: Yuji Oki
  • Electronic musical keyboard
    Patent number: D345755
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: April 5, 1994
    Assignee: Casio Computer Co., Ltd.
    Inventors: Toshio Igo, Yukihiko Ida, Kozo Hisanaga
  • Electronic keyboard musical instrument
    Patent number: D345990
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: April 12, 1994
    Assignee: Casio Computer Co., Ltd.
    Inventor: Hiroshi Nakatsuka
  • Electronic keyboard musical instrument
    Patent number: D346617
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: May 3, 1994
    Assignee: Casio Computer Co., Ltd.
    Inventor: Yuji Oki
  • Electronic piano
    Patent number: D348279
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: June 28, 1994
    Assignee: Yamaha Corporation
    Inventor: Tsutomu Nakada
  • Electronic keyboard musical instrument
    Patent number: D348686
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: July 12, 1994
    Assignee: Casio Computer Co., Ltd.
    Inventors: Toshio Igo, Yukihiro Ida
  • Electronic keyboard musical instrument
    Patent number: D348687
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: July 12, 1994
    Assignee: Casio Computer Co., Ltd.
    Inventor: Junichi Ono
  • Portable, electronic keyboard musical instrument
    Patent number: D349127
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: July 26, 1994
    Assignee: Prince Rogers Nelson
    Inventor: Prince R. Nelson
  • Electronic musical instrument with a keyboard strummer
    Patent number: D351612
    Type: Grant
    Filed: April 9, 1993
    Date of Patent: October 18, 1994
    Inventor: Franklin N. Eventoff
  • Electronic keyboard musical instrument
    Patent number: D355666
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: February 21, 1995
    Assignee: Yamaha Corporation
    Inventor: Yukinori Mikage
  • Electronic keyboard
    Patent number: D355923
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: February 28, 1995
    Assignee: Hal Leonard Publishing Corporation
    Inventor: Richard B. Slater
  • Electronic keyboard
    Patent number: D355924
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: February 28, 1995
    Assignee: Hal Leonard Publishing Corporation
    Inventor: Richard B. Slater
  • Electronic keyboard musical instrument
    Patent number: D357269
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: April 11, 1995
    Assignee: Yamaha Corporation
    Inventor: Masafumi Ito
  • Electronic keyboard musical instrument
    Patent number: D357270
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: April 11, 1995
    Assignee: Yamaha Corporation
    Inventor: Mitsuru Miyamoto
  • Electronic quiz unit for attachment to books
    Patent number: D364643
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: November 28, 1995
    Assignee: Educational Insights
    Inventors: Eddie J. Marfori, Gregory B. Bergeron
  • Electronic keyboard musical instrument
    Patent number: D369175
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: April 23, 1996
    Assignee: Yamaha Corporation
    Inventor: Tsutomu Nakada
  • Musical keyboard
    Patent number: D371352
    Type: Grant
    Filed: September 15, 1995
    Date of Patent: July 2, 1996
    Assignee: International Business Machines Corporation
    Inventors: Randal L. Bertram, John D. Swansey
  • Electronic keyboard musical instrument
    Patent number: D372930
    Type: Grant
    Filed: July 7, 1995
    Date of Patent: August 20, 1996
    Assignee: Yamaha Corporation
    Inventor: Hidehiko Miura
  • Electronic keyboard musical instrument
    Patent number: D372931
    Type: Grant
    Filed: July 7, 1995
    Date of Patent: August 20, 1996
    Assignee: Yamaha Corporation
    Inventor: Hidehiko Miura