In this section, we will explain how to create a two-dimensional patent map and introduce patent analysis examples of specific patent application trends. In order to use a one-dimensional patent map already created with a patent map as a template, click the "Edit" button on the upper left of the patent map screen (display the patent map wizard)
Let's create a two-dimensional patent map by selecting "2D" from the map type next.
The input field on the y axis becomes effective. Since we also want to analyze the x axis with patent application date this time, we will not change the x axis in particular. Let's select patent applicant as y axis.
As a patent applicant on the y axis, click on the "candidate display" button in order to know what kind of series is appropriate for making a patent map. Then, the patent applicants included in the patent search population are ranked. By clicking on the check, you can select the patent applicant whose patent map you want to create (it will be reflected in the entry field on the left). You can also create a patent map by directly entering the patent applicant in the text entry field on the left side.
When you click the "TOP 10" button, the top ten candidates are automatically checked. It is convenient when you want to create a patent map for patent applicants roughly and conduct patent analysis roughly.
For this time, we will create patent maps for major electrical companies and patent analysis, so we will not select "subsidiary company" other than Matsushita Electric Works.
Regarding the date of patent application, almost no patent applications before 1990 were counted, so this time we will set a period from January 1990 and narrow the period.
Let's create a patent map by clicking the "PLOT" button after setting the conditions
The patent map is created. Looking at the trend of the patent application date, the number of patent applications of Toshiba, Hitachi and Sanyo is on a downward trend, while Matsushita shows that the number of patent applications is increasing from 1999 to 2005.
Let's analyze this trend by creating a more intuitive patent map.
Let's first create a patent map where the order of patent applicants is changed. Click the "Edit" button again to display candidate for patent applicants, you can change the order of patent applicants by dragging and dropping the displayed candidate names. In this example, let's summarize Toshiba, Hitachi, and Sanyo downward.
Let's create a patent map again under this condition and let's create a patent map by setting "surface chart" as chart and "drawing" method of y axis series drawing method.
Then, looking at the sum of the number of patent applications from the bottom to the four companies (Matsushita, Sony, Sharp, Matsushita Electric Works), it can be said that the number of patent applications is roughly increasing from 1994 to 2004, (Hitachi, Toshiba, Sanyo) have tended to decline, so we can analyze patents from the patent map that the number of patent applications for the total of the seven companies this time has declined as a whole.
Also, in 2002 all seven companies have valleys of patent applications, which seems to be related to the collapse of the IT bubble.
Let's see the share of patent applications in each company from the patent map. Set "bar chart" as chart and "100%" drawing method of y axis series. Comparing the share of the number of patent applications from the patent map, Matsushita, Toshiba and Hitachi's patent application number share were side by side around 1993, but the number of Matsushita patent applications filed around 2004 is comparable to that of Toshiba and Hitachi It has increased to the level to be.
From 2004 onwards, Matsushita's share of the number of patent applications is decreasing as Sharp's number of patent applications increases.
From the patent map, it can be seen from the patent map that when seeing that Sharp 's patent application number of applications in 1994 did not reach Matsushita Electric Works, it steadily increased the number of patent applications.
Data summarized like this can be easily used by spreadsheet software etc. by copying from 'Grid display' to clip board.