Growing community of inventors

Ibaraki, Japan

Takeshi Kawarai

Average Co-Inventor Count = 4.80

ph-index = 5

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 = 73

Takeshi KawaraiTakanori Nishiyama (5 patents)Takeshi KawaraiSeiko Nakasuna (5 patents)Takeshi KawaraiShuji Toyoshima (2 patents)Takeshi KawaraiAkira Takahashi (1 patent)Takeshi KawaraiHiroto Takita (1 patent)Takeshi KawaraiHirotaka Kobayashi (1 patent)Takeshi KawaraiYuuhei Abe (1 patent)Takeshi KawaraiYuichi Kosukegawa (1 patent)Takeshi KawaraiMasami Mizuno (1 patent)Takeshi KawaraiMasayuki Kimura (1 patent)Takeshi KawaraiTakahiro Nakata (1 patent)Takeshi KawaraiToshiharu Watanabe (1 patent)Takeshi KawaraiKazuyoshi Yamada (1 patent)Takeshi KawaraiTakayuki Nakajima (1 patent)Takeshi KawaraiHisashi Shibata (1 patent)Takeshi KawaraiShigeru Ichimura (1 patent)Takeshi KawaraiJiro Nishigaki (1 patent)Takeshi KawaraiMasanori Numa (1 patent)Takeshi KawaraiKazuo Tsukiyama (1 patent)Takeshi KawaraiMichiaki Ezure (1 patent)Takeshi KawaraiTakeshi Kawarai (7 patents)Takanori NishiyamaTakanori Nishiyama (25 patents)Seiko NakasunaSeiko Nakasuna (5 patents)Shuji ToyoshimaShuji Toyoshima (3 patents)Akira TakahashiAkira Takahashi (13 patents)Hiroto TakitaHiroto Takita (7 patents)Hirotaka KobayashiHirotaka Kobayashi (6 patents)Yuuhei AbeYuuhei Abe (5 patents)Yuichi KosukegawaYuichi Kosukegawa (4 patents)Masami MizunoMasami Mizuno (3 patents)Masayuki KimuraMasayuki Kimura (2 patents)Takahiro NakataTakahiro Nakata (2 patents)Toshiharu WatanabeToshiharu Watanabe (1 patent)Kazuyoshi YamadaKazuyoshi Yamada (1 patent)Takayuki NakajimaTakayuki Nakajima (1 patent)Hisashi ShibataHisashi Shibata (1 patent)Shigeru IchimuraShigeru Ichimura (1 patent)Jiro NishigakiJiro Nishigaki (1 patent)Masanori NumaMasanori Numa (1 patent)Kazuo TsukiyamaKazuo Tsukiyama (1 patent)Michiaki EzureMichiaki Ezure (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (7 from 42,485 patents)

2. Hitachi Engineering Co., Ltd. (1 from 162 patents)

3. Hitachi Video and Information System, Inc. (1 from 46 patents)


7 patents:

1. 5960156 - Video camera combined with recording and reproducing system having a

2. 5355228 - Camcorder incorporating a cavity for storing a remote controller therein

3. 5303062 - Folding camcorder for compact storage

4. 5278701 - Video camera combined with a VCR having a cylinder assembly positioned

5. 5130741 - Video camera having DC power source light

6. 4894731 - Method of shooting by camera integrated with VTR

7. 4885643 - VTR-integrated camera having playback function with movable lens cover

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as of
12/6/2025
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