Growing community of inventors

Yokohama, Japan

Masuo Tamada

Average Co-Inventor Count = 2.69

ph-index = 11

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 = 553

Masuo TamadaShinsuke Tamura (5 patents)Masuo TamadaHiroshi Ozaki (5 patents)Masuo TamadaHitoshi Kokuryo (5 patents)Masuo TamadaTsutomu Tanaka (3 patents)Masuo TamadaKazuhito Haruki (2 patents)Masuo TamadaHideo Matsuoka (2 patents)Masuo TamadaTeruo Azukizawa (1 patent)Masuo TamadaYukito Matsuo (1 patent)Masuo TamadaMasanori Iwamoto (1 patent)Masuo TamadaTakashi Sawafuji (1 patent)Masuo TamadaSeinosuke Kajitani (1 patent)Masuo TamadaKimio Katsuragawa (1 patent)Masuo TamadaMasuo Tamada (13 patents)Shinsuke TamuraShinsuke Tamura (9 patents)Hiroshi OzakiHiroshi Ozaki (8 patents)Hitoshi KokuryoHitoshi Kokuryo (5 patents)Tsutomu TanakaTsutomu Tanaka (30 patents)Kazuhito HarukiKazuhito Haruki (11 patents)Hideo MatsuokaHideo Matsuoka (3 patents)Teruo AzukizawaTeruo Azukizawa (15 patents)Yukito MatsuoYukito Matsuo (14 patents)Masanori IwamotoMasanori Iwamoto (6 patents)Takashi SawafujiTakashi Sawafuji (4 patents)Seinosuke KajitaniSeinosuke Kajitani (2 patents)Kimio KatsuragawaKimio Katsuragawa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kabushiki Kaisha Toshiba (13 from 52,789 patents)


13 patents:

1. 5729717 - IC card and issuing apparatus allowing multiple applications

2. 5148543 - IC card with a stored data change inhibition function

3. 5124920 - Driver restriction apparatus for restricting a vehicle driver

4. 5017766 - Portable electronic apparatus capable of confirming validity of

5. 4879645 - Data processing device with high security of stored programs

6. 4822990 - Admission control system having a transponder actuated by an inquiry

7. 4771460 - Data processing terminal device which stores a modified decrypted data

8. 4757543 - Encrypting and decrypting device which stores an algorithm in a memory

9. 4748557 - Data processing terminal device for storing encrypted journal data and

10. 4739479 - Apparatus for inputting classification information of delivery matter

11. 4641753 - Mail sorting apparatus

12. 4632252 - Mail sorting system with coding devices

13. 4613805 - Conveyor system

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1/22/2026
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