Growing community of inventors

Osaka, Japan

Hirofumi Okada

Average Co-Inventor Count = 3.45

ph-index = 4

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 66

Hirofumi OkadaShinichi Hirakawa (2 patents)Hirofumi OkadaTsutomu Ishikawa (1 patent)Hirofumi OkadaSaichi Ono (1 patent)Hirofumi OkadaRyuichi Ogawa (1 patent)Hirofumi OkadaMasaya Tanno (1 patent)Hirofumi OkadaTakafumi Hayashi (1 patent)Hirofumi OkadaHiroyuki Taketomi (1 patent)Hirofumi OkadaYoichiro Yotsuya (1 patent)Hirofumi OkadaMunetoshi Kajiya (1 patent)Hirofumi OkadaFumio Tosaka (1 patent)Hirofumi OkadaHiroshi Yamaga (1 patent)Hirofumi OkadaHiroshi Sakai (1 patent)Hirofumi OkadaYuji Hashitani (1 patent)Hirofumi OkadaTakayuki Imaida (1 patent)Hirofumi OkadaHiroshi Sakai (0 patent)Hirofumi OkadaHirofumi Okada (5 patents)Shinichi HirakawaShinichi Hirakawa (2 patents)Tsutomu IshikawaTsutomu Ishikawa (31 patents)Saichi OnoSaichi Ono (10 patents)Ryuichi OgawaRyuichi Ogawa (7 patents)Masaya TannoMasaya Tanno (7 patents)Takafumi HayashiTakafumi Hayashi (5 patents)Hiroyuki TaketomiHiroyuki Taketomi (4 patents)Yoichiro YotsuyaYoichiro Yotsuya (2 patents)Munetoshi KajiyaMunetoshi Kajiya (2 patents)Fumio TosakaFumio Tosaka (2 patents)Hiroshi YamagaHiroshi Yamaga (1 patent)Hiroshi SakaiHiroshi Sakai (1 patent)Yuji HashitaniYuji Hashitani (1 patent)Takayuki ImaidaTakayuki Imaida (1 patent)Hiroshi SakaiHiroshi Sakai (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sanyo Electric Co., Ltd. (3 from 8,780 patents)

2. Toppan Printing Co., Ltd. (1 from 1,268 patents)

3. Hisamitsu Pharmaceutical Company, Inc. (1 from 375 patents)

4. Kureha Corporation (1 from 327 patents)

5. Okada Shigyo Co., Ltd. (1 from 2 patents)


5 patents:

1. 8248540 - Broadcast signal receiving apparatus

2. 7267858 - Packaging material for and packaged product of medical supplies and the like

3. 6964520 - Packaging bag

4. 6333765 - Television receiver having an AGC circuit to control the gain on a tuner

5. 4933768 - Sound reproducer

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as of
12/18/2025
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