Takuro Isayama

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Ink receptacle for ink jet printer
- Patent number 4,673,955
- Issue date Jun 16, 1987
- Ricoh Company, Ltd.
- Minoru Ameyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink-jet printer head
- Patent number 4,591,883
- Issue date May 27, 1986
- Ricoh Company, Ltd.
- Takuro Isayama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink jet printing apparatus
- Patent number 4,586,058
- Issue date Apr 29, 1986
- Ricoh Company, Ltd.
- Hiroshi Yamazaki
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Multi-nozzle head for ink on-demand type ink jet printer
- Patent number 4,559,544
- Issue date Dec 17, 1985
- Ricoh Company, Ltd.
- Shuzo Matsumoto
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Color plotter
- Patent number 4,554,556
- Issue date Nov 19, 1985
- Ricoh Company, Ltd.
- Shinichi Hirata
- G01 - MEASURING TESTING
Information Patent Grant
Ink jet air removal system
- Patent number 4,518,974
- Issue date May 21, 1985
- Ricoh Company, Ltd.
- Takuro Isayama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink ejection head
- Patent number 4,510,509
- Issue date Apr 9, 1985
- Ricoh Company, Ltd.
- Masanori Horike
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink ejection apparatus comprising entrained air removal means
- Patent number 4,301,459
- Issue date Nov 17, 1981
- Ricoh Company, Ltd.
- Takuro Isayama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Multiple-nozzle ink-jet recording apparatus
- Patent number 4,300,144
- Issue date Nov 10, 1981
- Ricoh Co., Ltd.
- Takuro Isayama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink jet printing apparatus with reverse solvent flushing means
- Patent number 4,296,418
- Issue date Oct 20, 1981
- Ricoh Company, Ltd.
- Hiroshi Yamazaki
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Device for removing air bubbles formed and trapped in ink chamber o...
- Patent number 4,293,867
- Issue date Oct 6, 1981
- Ricoh Co., Ltd.
- Takuro Isayama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Analog signal delay circuit
- Patent number 4,271,366
- Issue date Jun 2, 1981
- Ricoh Co., Ltd.
- Takuro Isayama
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Drive circuit for ink jet discharging head
- Patent number 4,245,224
- Issue date Jan 13, 1981
- Ricoh Co., Ltd.
- Takuro Isayama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink jet printing apparatus
- Patent number 4,222,060
- Issue date Sep 9, 1980
- Ricoh Company, Ltd.
- Tsutomu Sato
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink-on-demand type ink jet head driving circuit
- Patent number 4,184,168
- Issue date Jan 15, 1980
- Ricoh Company, Ltd.
- Takuro Isayama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink filter clogging sensor and indicator
- Patent number 4,183,029
- Issue date Jan 8, 1980
- Ricoh Company, Ltd.
- Takuro Isayama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Color ink jet printing apparatus
- Patent number 4,178,597
- Issue date Dec 11, 1979
- Ricoh Company, Ltd.
- Takuro Isayama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Takuro Isayama

Person

Patents Grantslast 30 patents

Ink receptacle for ink jet printer

Ink-jet printer head

Ink jet printing apparatus

Multi-nozzle head for ink on-demand type ink jet printer

Color plotter

Ink jet air removal system

Ink ejection head

Ink ejection apparatus comprising entrained air removal means

Multiple-nozzle ink-jet recording apparatus

Ink jet printing apparatus with reverse solvent flushing means

Device for removing air bubbles formed and trapped in ink chamber o...

Analog signal delay circuit

Drive circuit for ink jet discharging head

Ink jet printing apparatus

Ink-on-demand type ink jet head driving circuit

Ink filter clogging sensor and indicator

Color ink jet printing apparatus