Forward Citations = 53

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6 inventors (with patents filed for the assignee):

Fumitaka Takahashi (2 out of 2 patents)

Hiroyuki Isashi (2 out of 2 patents)

Masanori Katsuta (1 out of 11 patents)

4. Muneo Ishida (1 out of 15 patents)

5. Tatsuo Furukawa (1 out of 1 patent)

6. Noriyuki Sakakibara (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. 5159762 - Regulating rule for grand pianos (1992-11-03),

2. 5131308 - Keyboard device of electronic keyboard musical instrument (1992-07-21),

3. 5056396 - Opening/closing apparatus of keyboard cover (1991-10-15),

4. 4995291 - Action mechanism for the piano (1991-02-26),

5. 4970929 - Muffler for pianos (1990-11-20),

6. 4827826 - Piano toy type musical instrument (1989-05-09),

7. 4794840 - Piano type musical instrument (1989-01-03),

8. 4790757 - Instrument for practicing multiplication (1988-12-13),

Kawai Gakki Seisakusho Co., Ltd. is a renowned Japanese musical instrument manufacturing company. Founded in 1927, Kawai is known for producing high-quality pianos, digital pianos, and other musical instruments. Their commitment to innovation and craftsmanship has earned them a reputation for excellence in the music industry.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

8 Patents

#11 in Hamamatsu

#4,915 in Japan

Hamamatsu, Japan

Kawai Gakki Seisakusho Co., Ltd.