Takashi Serizawa

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Gradient index-type optical device and process for production thereof
- Patent number 5,032,000
- Issue date Jul 16, 1991
- Canon Kabushiki Kaisha
- Seiichi Shingaki
- G02 - OPTICS
Information Patent Grant
Gradient-index-type optical device
- Patent number 4,971,423
- Issue date Nov 20, 1990
- Canon Kabushiki Kaisha
- Kohei Nakata
- G02 - OPTICS
Information Patent Grant
Array lens
- Patent number 4,783,141
- Issue date Nov 8, 1988
- Canon Kabushiki Kaisha
- Takeshi Baba
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Optical device with variably shaped optical surface and a method fo...
- Patent number 4,783,155
- Issue date Nov 8, 1988
- Canon Kabushiki Kaisha
- Hiroyuki Imataki
- G02 - OPTICS
Information Patent Grant
Optical device having positionally changeable optical surfaces and...
- Patent number 4,781,445
- Issue date Nov 1, 1988
- Canon Kabushiki Kaisha
- Takeshi Baba
- G02 - OPTICS
Information Patent Grant
Process for producing optical element
- Patent number 4,778,256
- Issue date Oct 18, 1988
- Canon Kabushiki Kaisha
- Takashi Serizawa
- G02 - OPTICS
Information Patent Grant
Method and element for optical modulation
- Patent number 4,714,326
- Issue date Dec 22, 1987
- Canon Kabushiki Kaisha
- Masayuki Usui
- G02 - OPTICS
Information Patent Grant
Variable focal length lens
- Patent number 4,712,882
- Issue date Dec 15, 1987
- Canon Kabushiki Kaisha
- Takeshi Baba
- G02 - OPTICS

Takashi Serizawa

Person

Patents Grantslast 30 patents

Gradient index-type optical device and process for production thereof

Gradient-index-type optical device

Array lens

Optical device with variably shaped optical surface and a method fo...

Optical device having positionally changeable optical surfaces and...

Process for producing optical element

Method and element for optical modulation

Variable focal length lens