Yutaka Ohtsu

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Column packing material and method for producing the same
- Patent number 7,329,386
- Issue date Feb 12, 2008
- Shiseido Co., Ltd.
- Atsushi Kobayashi
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Polymer packing material for liquid chromatography and a producing...
- Patent number 6,482,867
- Issue date Nov 19, 2002
- Shiseido Co., Ltd.
- Tomohiko Kimura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Liquid chromatography and column packing material
- Patent number 6,360,589
- Issue date Mar 26, 2002
- Shiseido Company, Ltd.
- Taketoshi Kanda
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Cation-exchanged clay mineral, packing material for chromatography...
- Patent number 6,316,647
- Issue date Nov 13, 2001
- Shiseido Company, Ltd.
- Yutaka Ohtsu
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for analyzing a sample by using a liquid chromatograph
- Patent number 6,063,283
- Issue date May 16, 2000
- Shiseido Company, Ltd.
- Osamu Shirota
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Polymer packing material for liquid chromatography and a producing...
- Patent number 5,990,182
- Issue date Nov 23, 1999
- Shiseido Company, Ltd.
- Ken Hosoya
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Liquid chromatograph having a micro- and semi-micro column
- Patent number 5,738,783
- Issue date Apr 14, 1998
- Shiseido Company, Ltd.
- Osamu Shirota
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Packing material for column and process for production thereof
- Patent number 5,672,422
- Issue date Sep 30, 1997
- Shiseido Company Ltd.
- Taketoshi Kanda
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Modified silica gel in chromatography packing material
- Patent number 5,318,848
- Issue date Jun 7, 1994
- Shiseido Company Ltd.
- Kenji Itoh
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Packing material for liquid chromatography
- Patent number 5,203,991
- Issue date Apr 20, 1993
- Shiseido Company, Ltd.
- Hiroshi Kutsuna
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Packing material for liquid chromatography
- Patent number 5,145,578
- Issue date Sep 8, 1992
- Shiseido Company Ltd.
- Kazo Tokubo
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Column packing material with both hydrophobic and hydrophilic group...
- Patent number 5,135,649
- Issue date Aug 4, 1992
- Shiseido Company Ltd.
- Taketoshi Kanda
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Modified powder or particulate material
- Patent number 4,882,225
- Issue date Nov 21, 1989
- Shiseido Company Ltd.
- Hiroshi Fukui
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Modified powder
- Patent number 4,818,614
- Issue date Apr 4, 1989
- Shiseido Company Ltd.
- Hiroshi Fukui
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Cosmetic compositions containing modified powder or particulate mat...
- Patent number 4,801,445
- Issue date Jan 31, 1989
- Shiseido Company Ltd.
- Hiroshi Fukui
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Packing material for liquid chromatography
- Patent number 4,743,377
- Issue date May 10, 1988
- Shiseido Company Ltd.
- Yutaka Ohtsu
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Column packing material and method for production thereof
- Publication number 20040043493
- Publication date Mar 4, 2004
- Atsushi Kobayashi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Yutaka Ohtsu

Person

Patents Grantslast 30 patents

Column packing material and method for producing the same

Polymer packing material for liquid chromatography and a producing...

Liquid chromatography and column packing material

Cation-exchanged clay mineral, packing material for chromatography...

Method for analyzing a sample by using a liquid chromatograph

Polymer packing material for liquid chromatography and a producing...

Liquid chromatograph having a micro- and semi-micro column

Packing material for column and process for production thereof

Modified silica gel in chromatography packing material

Packing material for liquid chromatography

Packing material for liquid chromatography

Column packing material with both hydrophobic and hydrophilic group...

Modified powder or particulate material

Modified powder

Cosmetic compositions containing modified powder or particulate mat...

Packing material for liquid chromatography

Patents Applicationslast 30 patents

Column packing material and method for production thereof