Growing community of inventors

Iwaki, Japan

Tsutomu Tatekawa

Average Co-Inventor Count = 1.46

ph-index = 2

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 = 13

Tsutomu TatekawaTokio Suzuki (3 patents)Tsutomu TatekawaYusuke Yoshida (2 patents)Tsutomu TatekawaShoji Suzuki (1 patent)Tsutomu TatekawaIchiro Kato (1 patent)Tsutomu TatekawaNobunori Kudou (1 patent)Tsutomu TatekawaHiroshi Kawase (1 patent)Tsutomu TatekawaYousuke Kuno (1 patent)Tsutomu TatekawaTsutomu Tatekawa (8 patents)Tokio SuzukiTokio Suzuki (6 patents)Yusuke YoshidaYusuke Yoshida (18 patents)Shoji SuzukiShoji Suzuki (64 patents)Ichiro KatoIchiro Kato (5 patents)Nobunori KudouNobunori Kudou (2 patents)Hiroshi KawaseHiroshi Kawase (2 patents)Yousuke KunoYousuke Kuno (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Alpine Electronics, Inc. (6 from 937 patents)

2. Hyundai Mobis Co., Ltd. (1 from 2,632 patents)

3. Alps Alpine Co., Ltd. (1 from 557 patents)

4. Toshiba Alpine Automotive Technology Corporation (1 from 11 patents)


8 patents:

1. 11400867 - Operation apparatus

2. 10416459 - Head-up display apparatus

3. 7921434 - Disc device having multiple disk carry-in speeds

4. 7716691 - Disk-storing disk device with laterally disposed switchover member

5. 7472404 - Disk device having a transporting-unit rotating unit rotating about a fulcrum shaft

6. 7472403 - Disk-storing disk device having a drive unit and a transporting-unit supported about fulcrum

7. 7418724 - Apparatus for changing multiple media disks

8. 7339858 - Disk device, and methods for checking, ejecting, and loading disk in disk device

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as of
12/11/2025
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