For the Inventor, By the Inventor

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Hiroshima, Japan

Shindaiwa Kogyo Co., Ltd.

USPTO Granted Patents = 14

Forward Citations = 142

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18 inventors (with patents filed for the assignee):

Kenji Imafuku (6 out of 9 patents)

Hidenori Hiraki (3 out of 3 patents)

Mitsunori Watanabe (2 out of 6 patents)

4. Takayuki Fujikawa (2 out of 2 patents)

5. Hirokazu Funakoshi (2 out of 2 patents)

6. Takanobu Koguchi (2 out of 2 patents)

7. Hiroyuki Morimoto (2 out of 3 patents)

8. Masaharu Shimoji (1 out of 4 patents)

9. Junichi Ueda (1 out of 1 patent)

10. Yuki Terada (1 out of 1 patent)

11. Tadafumi Miyamoto (1 out of 1 patent)

12. Hisau Kodama (1 out of 1 patent)

13. Tan Honda (1 out of 1 patent)

14. Hidenori Mukaida (1 out of 1 patent)

15. Kazuaki Aizawa (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 6995546 - Alternating current generator (2006-02-07),

2. 6830030 - Four-cycle engine (2004-12-14),

3. 6766784 - Four-cycle engine (2004-07-27),

4. 6655335 - Small engine for power tools (2003-12-02),

5. 6253415 - Knapsack engine-driven tool (2001-07-03),

6. 6250075 - Engine muffler (2001-06-26),

7. 6145484 - Four-cycle engine having improved lubricating mechanism (2000-11-14),

8. 6116581 - Choke system for a small four-cycle engine (2000-09-12),

9. 6109230 - Decompression device for an engine (2000-08-29),

10. 5239254 - Series-exciting device for synchronous generators (1993-08-24),

11. 4466187 - Portable circular saw (1984-08-21),

12. 4450627 - Device for determining a correct sawing position for a portable rotary (1984-05-29),

13. D255770 - Chain saw (1980-07-08),

14. 4204320 - Sprocket shaft stay (1980-05-27),

Shindaiwa Kogyo Co., Ltd. is a Japanese company that specializes in the manufacturing of high-quality outdoor power equipment, including trimmers, blowers, chainsaws, and sprayers. With a history dating back to 1953, Shindaiwa has a reputation for producing reliable and durable products that are trusted by professionals and homeowners alike. The company is committed to innovation and sustainability, constantly seeking to improve their products and reduce their environmental impact.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

14 Patents

#29 in Hiroshima, 729-3431

#3,487 in Japan

#40,929 in the World

Hiroshima, Japan

Shindaiwa Kogyo Co., Ltd.

Forward Citations = 142

18 inventors:

Kenji Imafuku (6 out of 9 patents)

Hidenori Hiraki (3 out of 3 patents)

Mitsunori Watanabe (2 out of 6 patents)

4. Takayuki Fujikawa (2 out of 2 patents)

5. Hirokazu Funakoshi (2 out of 2 patents)

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