Tomowaki Takahashi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Zoom lens capable of accomplishing macro-photography
- Patent number 4,770,511
- Issue date Sep 13, 1988
- Nippon Kogaku K.K.
- Yasuo Yonezawa
- G02 - OPTICS
Information Patent Grant
Zoom lens including a wide angle of view
- Patent number 4,699,475
- Issue date Oct 13, 1987
- Nippon Kogaku K.K.
- Tomowaki Takahashi
- G02 - OPTICS
Information Patent Grant
Athermalized zoom lens system
- Patent number 4,653,872
- Issue date Mar 31, 1987
- Nippon Kogaku K.K.
- Tomowaki Takahashi
- G02 - OPTICS
Information Patent Grant
Zoom lens including a wide angle of view
- Patent number 4,632,519
- Issue date Dec 30, 1986
- Nippon Kogaku K.K.
- Tomowaki Takahashi
- G02 - OPTICS
Information Patent Grant
Telecentric rear converter
- Patent number 4,588,265
- Issue date May 13, 1986
- Nippon Kogaku K.K.
- Tomowaki Takahashi
- G02 - OPTICS
Information Patent Grant
Zoom lens
- Patent number 4,437,733
- Issue date Mar 20, 1984
- Nippon Kogaku K.K.
- Tomowaki Takahashi
- G02 - OPTICS