Growing community of inventors

Tokyo, Japan

Koichi Oyama

Average Co-Inventor Count = 1.84

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 = 114

Koichi OyamaHajime Inoue (1 patent)Koichi OyamaYasuhiro Takahashi (1 patent)Koichi OyamaMasashi Nakamura (1 patent)Koichi OyamaNoriyuki Yamamoto (1 patent)Koichi OyamaHisayoshi Moriwaki (1 patent)Koichi OyamaIwao Yamamoto (1 patent)Koichi OyamaYoshikazu Hara (1 patent)Koichi OyamaTakeo Morinaga (1 patent)Koichi OyamaToshiro Ozawa (1 patent)Koichi OyamaTetsuo Morimoto (1 patent)Koichi OyamaMuneaki Kawai (1 patent)Koichi OyamaHideaki Nogi (1 patent)Koichi OyamaKuninori Sasaki (1 patent)Koichi OyamaXiaohong Sun (1 patent)Koichi OyamaKoichi Oyama (9 patents)Hajime InoueHajime Inoue (96 patents)Yasuhiro TakahashiYasuhiro Takahashi (82 patents)Masashi NakamuraMasashi Nakamura (75 patents)Noriyuki YamamotoNoriyuki Yamamoto (54 patents)Hisayoshi MoriwakiHisayoshi Moriwaki (31 patents)Iwao YamamotoIwao Yamamoto (28 patents)Yoshikazu HaraYoshikazu Hara (24 patents)Takeo MorinagaTakeo Morinaga (15 patents)Toshiro OzawaToshiro Ozawa (14 patents)Tetsuo MorimotoTetsuo Morimoto (14 patents)Muneaki KawaiMuneaki Kawai (11 patents)Hideaki NogiHideaki Nogi (5 patents)Kuninori SasakiKuninori Sasaki (2 patents)Xiaohong SunXiaohong Sun (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Riso Kagaku Corporation (4 from 1,074 patents)

2. Sony Corporation (3 from 58,132 patents)

3. Nec Corporation (1 from 35,756 patents)

4. Graphic Communication Tech., Ltd. (1 from 1 patent)


9 patents:

1. 8004594 - Apparatus, method, and program for controlling display of moving and still images

2. 7460888 - Mobile terminal device protected against impact

3. 6779198 - Data processing apparatus, data processing method, and recording medium

4. 6508168 - Stencil printer

5. 6343379 - Receiver and program updating method

6. 5707057 - Sheet feeding device

7. 5609101 - Ink container holding device in rotary printing machine

8. 5558019 - Rotary printing machine

9. 5099329 - Noise reduction method and device for image signal

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as of
1/9/2026
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